40944940 has 24 divisors (see below), whose sum is σ = 88309872. Its totient is φ = 15935040.

The previous prime is 40944931. The next prime is 40944947. The reversal of 40944940 is 4944904.

It is a happy number.

It is a super-2 number, since 2×40944940² = 3352976223207200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40944896 and 40944905.

It is not an unprimeable number, because it can be changed into a prime (40944947) 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 7 ways as a sum of consecutive naturals, for example, 26926 + ... + 28405.

It is an arithmetic number, because the mean of its divisors is an integer number (3679578).

Almost surely, 2^40944940 is an apocalyptic number.

It is an amenable number.

40944940 is an abundant number, since it is smaller than the sum of its proper divisors (47364932).

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

40944940 is a wasteful number, since it uses less digits than its factorization.

40944940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55377 (or 55375 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 40944940 is about 6398.8233293317. The cubic root of 40944940 is about 344.6672981085.

The spelling of 40944940 in words is "forty million, nine hundred forty-four thousand, nine hundred forty".