40909550 has 24 divisors (see below), whose sum is σ = 83010312. Its totient is φ = 14876000.

The previous prime is 40909549. The next prime is 40909567. The reversal of 40909550 is 5590904.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 36641 + ... + 37740.

It is an arithmetic number, because the mean of its divisors is an integer number (3458763).

Almost surely, 2^40909550 is an apocalyptic number.

40909550 is an abundant number, since it is smaller than the sum of its proper divisors (42100762).

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

40909550 is a wasteful number, since it uses less digits than its factorization.

40909550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74404 (or 74399 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 40909550 is about 6396.0573793549. The cubic root of 40909550 is about 344.5679672211.

The spelling of 40909550 in words is "forty million, nine hundred nine thousand, five hundred fifty".