40072592 has 60 divisors (see below), whose sum is σ = 91601280. Its totient is φ = 16930368.

The previous prime is 40072589. The next prime is 40072607. The reversal of 40072592 is 29527004.

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, 61613 + ... + 62259.

It is an arithmetic number, because the mean of its divisors is an integer number (1526688).

Almost surely, 2^40072592 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 40072592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45800640).

40072592 is an abundant number, since it is smaller than the sum of its proper divisors (51528688).

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

40072592 is a wasteful number, since it uses less digits than its factorization.

40072592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 40072592 is about 6330.2916204548. The cubic root of 40072592 is about 342.2019486000.

Adding to 40072592 its reverse (29527004), we get a palindrome (69599596).

The spelling of 40072592 in words is "forty million, seventy-two thousand, five hundred ninety-two".