64024740 has 72 divisors (see below), whose sum is σ = 209155128. Its totient is φ = 15759360.

The previous prime is 64024733. The next prime is 64024769. The reversal of 64024740 is 4742046.

It can be written as a sum of positive squares in 4 ways, for example, as 2056356 + 61968384 = 1434^2 + 7872^2 .

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, 11341 + ... + 16020.

Almost surely, 2^64024740 is an apocalyptic number.

64024740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64024740 is an abundant number, since it is smaller than the sum of its proper divisors (145130388).

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

64024740 is a wasteful number, since it uses less digits than its factorization.

64024740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27389 (or 27384 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 64024740 is about 8001.5461005983. The cubic root of 64024740 is about 400.0515350267.

Adding to 64024740 its reverse (4742046), we get a palindrome (68766786).

The spelling of 64024740 in words is "sixty-four million, twenty-four thousand, seven hundred forty".