40051264 has 28 divisors (see below), whose sum is σ = 86703408. Its totient is φ = 18204800.

The previous prime is 40051229. The next prime is 40051267. The reversal of 40051264 is 46215004.

It is a super-3 number, since 3×40051264³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (40051267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27742 + ... + 29149.

Almost surely, 2^40051264 is an apocalyptic number.

40051264 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40051264 is an abundant number, since it is smaller than the sum of its proper divisors (46652144).

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

40051264 is a wasteful number, since it uses less digits than its factorization.

40051264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56914 (or 56904 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40051264 is about 6328.6067977083. The cubic root of 40051264 is about 342.1412273106.

Adding to 40051264 its reverse (46215004), we get a palindrome (86266268).

The spelling of 40051264 in words is "forty million, fifty-one thousand, two hundred sixty-four".