64062240 has 144 divisors (see below), whose sum is σ = 222009984. Its totient is φ = 15516160.

The previous prime is 64062227. The next prime is 64062253. The reversal of 64062240 is 4226046.

It is an interprime number because it is at equal distance from previous prime (64062227) and next prime (64062253).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 64062240.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57529 + ... + 58631.

It is an arithmetic number, because the mean of its divisors is an integer number (1541736).

Almost surely, 2^64062240 is an apocalyptic number.

64062240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64062240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111004992).

64062240 is an abundant number, since it is smaller than the sum of its proper divisors (157947744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64062240 is a wasteful number, since it uses less digits than its factorization.

64062240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64062240 is about 8003.8890547033. The cubic root of 64062240 is about 400.1296246558.

Adding to 64062240 its reverse (4226046), we get a palindrome (68288286).

It can be divided in two parts, 6406 and 2240, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 64062240 in words is "sixty-four million, sixty-two thousand, two hundred forty".