40458792 has 64 divisors (see below), whose sum is σ = 110914560. Its totient is φ = 12196800.

The previous prime is 40458791. The next prime is 40458811. The reversal of 40458792 is 29785404.

It is a self number, because there is not a number n which added to its sum of digits gives 40458792.

It is not an unprimeable number, because it can be changed into a prime (40458791) 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 15 ways as a sum of consecutive naturals, for example, 87153 + ... + 87615.

It is an arithmetic number, because the mean of its divisors is an integer number (1733040).

Almost surely, 2^40458792 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 40458792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55457280).

40458792 is an abundant number, since it is smaller than the sum of its proper divisors (70455768).

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

40458792 is a wasteful number, since it uses less digits than its factorization.

40458792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 40458792 is about 6360.7226004598. The cubic root of 40458792 is about 343.2977606864.

The spelling of 40458792 in words is "forty million, four hundred fifty-eight thousand, seven hundred ninety-two".