40000037 has 16 divisors (see below), whose sum is σ = 50191872. Its totient is φ = 30967920.

The previous prime is 40000033. The next prime is 40000061. The reversal of 40000037 is 73000004.

It is a cyclic number.

It is not a de Polignac number, because 40000037 - 2² = 40000033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39999976 and 40000030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10958 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (3136992).

Almost surely, 2^40000037 is an apocalyptic number.

It is an amenable number.

40000037 is a deficient number, since it is larger than the sum of its proper divisors (10191835).

40000037 is a wasteful number, since it uses less digits than its factorization.

40000037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 40000037 is about 6324.5582454429. The cubic root of 40000037 is about 341.9952947838.

The spelling of 40000037 in words is "forty million, thirty-seven", and thus it is an aban number and an uban number.