40451264 has 42 divisors (see below), whose sum is σ = 93383100. Its totient is φ = 17334912.

The previous prime is 40451263. The next prime is 40451267. The reversal of 40451264 is 46215404.

It is not an unprimeable number, because it can be changed into a prime (40451263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3314 + ... + 9585.

Almost surely, 2^40451264 is an apocalyptic number.

It is an amenable number.

40451264 is an abundant number, since it is smaller than the sum of its proper divisors (52931836).

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

40451264 is a wasteful number, since it uses less digits than its factorization.

40451264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925 (or 12908 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40451264 is about 6360.1308162647. The cubic root of 40451264 is about 343.2764673678.

Adding to 40451264 its reverse (46215404), we get a palindrome (86666668).

The spelling of 40451264 in words is "forty million, four hundred fifty-one thousand, two hundred sixty-four".