40438974 has 32 divisors (see below), whose sum is σ = 82700064. Its totient is φ = 13178880.

The previous prime is 40438949. The next prime is 40438987. The reversal of 40438974 is 47983404.

40438974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114382 + ... + 114734.

It is an arithmetic number, because the mean of its divisors is an integer number (2584377).

Almost surely, 2^40438974 is an apocalyptic number.

40438974 is an abundant number, since it is smaller than the sum of its proper divisors (42261090).

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

40438974 is a wasteful number, since it uses less digits than its factorization.

40438974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 40438974 is about 6359.1645677715. The cubic root of 40438974 is about 343.2416988200.

The spelling of 40438974 in words is "forty million, four hundred thirty-eight thousand, nine hundred seventy-four".