40692540 has 72 divisors (see below), whose sum is σ = 132550992. Its totient is φ = 9300480.

The previous prime is 40692529. The next prime is 40692557. The reversal of 40692540 is 4529604.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40692498 and 40692507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3981 + ... + 9860.

It is an arithmetic number, because the mean of its divisors is an integer number (1840986).

Almost surely, 2^40692540 is an apocalyptic number.

It is an amenable number.

40692540 is an abundant number, since it is smaller than the sum of its proper divisors (91858452).

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

40692540 is a wasteful number, since it uses less digits than its factorization.

40692540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13867 (or 13858 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 40692540 is about 6379.0704652010. The cubic root of 40692540 is about 343.9576182688.

The spelling of 40692540 in words is "forty million, six hundred ninety-two thousand, five hundred forty".