64054440 has 48 divisors (see below), whose sum is σ = 208178100. Its totient is φ = 17081088.

The previous prime is 64054427. The next prime is 64054451. The reversal of 64054440 is 4445046.

It can be written as a sum of positive squares in 2 ways, for example, as 63968004 + 86436 = 7998^2 + 294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88605 + ... + 89324.

Almost surely, 2^64054440 is an apocalyptic number.

64054440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64054440 is an abundant number, since it is smaller than the sum of its proper divisors (144123660).

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

64054440 is a wasteful number, since it uses less digits than its factorization.

64054440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177946 (or 177939 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 64054440 is about 8003.4017767447. The cubic root of 64054440 is about 400.1133845235.

Adding to 64054440 its reverse (4445046), we get a palindrome (68499486).

The spelling of 64054440 in words is "sixty-four million, fifty-four thousand, four hundred forty".