40981550 has 24 divisors (see below), whose sum is σ = 78088752. Its totient is φ = 15992000.

The previous prime is 40981547. The next prime is 40981573. The reversal of 40981550 is 5518904.

It is a congruent number.

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, 7946 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (3253698).

Almost surely, 2^40981550 is an apocalyptic number.

40981550 is a deficient number, since it is larger than the sum of its proper divisors (37107202).

40981550 is a wasteful number, since it uses less digits than its factorization.

40981550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044 (or 20039 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 40981550 is about 6401.6833723639. The cubic root of 40981550 is about 344.7699930192.

The spelling of 40981550 in words is "forty million, nine hundred eighty-one thousand, five hundred fifty".