40372032 has 56 divisors (see below), whose sum is σ = 109723936. Its totient is φ = 13091328.

The previous prime is 40372027. The next prime is 40372037. The reversal of 40372032 is 23027304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40372027) and next prime (40372037).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40372037) 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, 4263 + ... + 9945.

It is an arithmetic number, because the mean of its divisors is an integer number (1959356).

Almost surely, 2^40372032 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 40372032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54861968).

40372032 is an abundant number, since it is smaller than the sum of its proper divisors (69351904).

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

40372032 is a wasteful number, since it uses less digits than its factorization.

40372032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735 (or 5725 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40372032 is about 6353.8989604809. The cubic root of 40372032 is about 343.0521953622.

Adding to 40372032 its reverse (23027304), we get a palindrome (63399336).

The spelling of 40372032 in words is "forty million, three hundred seventy-two thousand, thirty-two".