40457472 has 72 divisors (see below), whose sum is σ = 117489120. Its totient is φ = 12257280.

The previous prime is 40457413. The next prime is 40457477. The reversal of 40457472 is 27475404.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40457477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6054 + ... + 10842.

Almost surely, 2^40457472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40457472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58744560).

40457472 is an abundant number, since it is smaller than the sum of its proper divisors (77031648).

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

40457472 is a wasteful number, since it uses less digits than its factorization.

40457472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819 (or 4805 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 40457472 is about 6360.6188378176. The cubic root of 40457472 is about 343.2940271924.

The spelling of 40457472 in words is "forty million, four hundred fifty-seven thousand, four hundred seventy-two".