40290137 has 8 divisors (see below), whose sum is σ = 40689600. Its totient is φ = 39893040.

The previous prime is 40290083. The next prime is 40290149. The reversal of 40290137 is 73109204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40290137 - 2¹⁸ = 40027993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40290197) 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, 57962 + ... + 58652.

It is an arithmetic number, because the mean of its divisors is an integer number (5086200).

Almost surely, 2^40290137 is an apocalyptic number.

It is an amenable number.

40290137 is a deficient number, since it is larger than the sum of its proper divisors (399463).

40290137 is a wasteful number, since it uses less digits than its factorization.

40290137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 40290137 is about 6347.4512207657. The cubic root of 40290137 is about 342.8200769371.

The spelling of 40290137 in words is "forty million, two hundred ninety thousand, one hundred thirty-seven".