40205944 has 16 divisors (see below), whose sum is σ = 76341600. Its totient is φ = 19848192.

The previous prime is 40205941. The next prime is 40205981. The reversal of 40205944 is 44950204.

It is a super-2 number, since 2×40205944² = 3233035865862272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31177 + ... + 32440.

It is an arithmetic number, because the mean of its divisors is an integer number (4771350).

Almost surely, 2^40205944 is an apocalyptic number.

It is an amenable number.

40205944 is a deficient number, since it is larger than the sum of its proper divisors (36135656).

40205944 is a wasteful number, since it uses less digits than its factorization.

40205944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63702 (or 63698 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40205944 is about 6340.8157203943. The cubic root of 40205944 is about 342.5811170577.

The spelling of 40205944 in words is "forty million, two hundred five thousand, nine hundred forty-four".