40997960 has 32 divisors (see below), whose sum is σ = 96258240. Its totient is φ = 15685824.

The previous prime is 40997951. The next prime is 40997969. The reversal of 40997960 is 6979904.

It is an interprime number because it is at equal distance from previous prime (40997951) and next prime (40997969).

It is not an unprimeable number, because it can be changed into a prime (40997969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21362 + ... + 23201.

It is an arithmetic number, because the mean of its divisors is an integer number (3008070).

Almost surely, 2^40997960 is an apocalyptic number.

40997960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40997960 is an abundant number, since it is smaller than the sum of its proper divisors (55260280).

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

40997960 is a wasteful number, since it uses less digits than its factorization.

40997960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44597 (or 44593 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 40997960 is about 6402.9649382142. The cubic root of 40997960 is about 344.8160049490.

The spelling of 40997960 in words is "forty million, nine hundred ninety-seven thousand, nine hundred sixty".