40997976 has 24 divisors (see below), whose sum is σ = 102573420. Its totient is φ = 13655536.

The previous prime is 40997969. The next prime is 40997977. The reversal of 40997976 is 67979904.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40997977) 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 5 ways as a sum of consecutive naturals, for example, 30715 + ... + 32021.

Almost surely, 2^40997976 is an apocalyptic number.

It is an amenable number.

40997976 is an abundant number, since it is smaller than the sum of its proper divisors (61575444).

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

40997976 is an equidigital number, since it uses as much as digits as its factorization.

40997976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 40997976 is about 6402.9661876352. The cubic root of 40997976 is about 344.8160498053.

Multiplying 40997976 by its product of nonzero digits (857304), we get a square (35147728816704 = 5928552²).

The spelling of 40997976 in words is "forty million, nine hundred ninety-seven thousand, nine hundred seventy-six".