40990137 has 16 divisors (see below), whose sum is σ = 57858240. Its totient is φ = 25768512.

The previous prime is 40990133. The next prime is 40990141. The reversal of 40990137 is 73109904.

It is an interprime number because it is at equal distance from previous prime (40990133) and next prime (40990141).

It is not a de Polignac number, because 40990137 - 2² = 40990133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40990098 and 40990107.

It is not an unprimeable number, because it can be changed into a prime (40990133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1738 + ... + 9219.

It is an arithmetic number, because the mean of its divisors is an integer number (3616140).

Almost surely, 2^40990137 is an apocalyptic number.

It is an amenable number.

40990137 is a deficient number, since it is larger than the sum of its proper divisors (16868103).

40990137 is a wasteful number, since it uses less digits than its factorization.

40990137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11032.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 40990137 is about 6402.3540202023. The cubic root of 40990137 is about 344.7940716040.

The spelling of 40990137 in words is "forty million, nine hundred ninety thousand, one hundred thirty-seven".