40690755 has 80 divisors (see below), whose sum is σ = 86237184. Its totient is φ = 17962560.

The previous prime is 40690753. The next prime is 40690757. The reversal of 40690755 is 55709604.

It is an interprime number because it is at equal distance from previous prime (40690753) and next prime (40690757).

It is not a de Polignac number, because 40690755 - 2¹ = 40690753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40690751) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 87654 + ... + 88116.

Almost surely, 2^40690755 is an apocalyptic number.

40690755 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40690755 is an abundant number, since it is smaller than the sum of its proper divisors (45546429).

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

40690755 is a wasteful number, since it uses less digits than its factorization.

40690755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 40690755 is about 6378.9305530002. The cubic root of 40690755 is about 343.9525889004.

The spelling of 40690755 in words is "forty million, six hundred ninety thousand, seven hundred fifty-five".