40747137 has 16 divisors (see below), whose sum is σ = 55520640. Its totient is φ = 26576000.

The previous prime is 40747129. The next prime is 40747139. The reversal of 40747137 is 73174704.

It is a cyclic number.

It is not a de Polignac number, because 40747137 - 2³ = 40747129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40747098 and 40747107.

It is not an unprimeable number, because it can be changed into a prime (40747139) 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, 26212 + ... + 27722.

It is an arithmetic number, because the mean of its divisors is an integer number (3470040).

Almost surely, 2^40747137 is an apocalyptic number.

It is an amenable number.

40747137 is a deficient number, since it is larger than the sum of its proper divisors (14773503).

40747137 is a wasteful number, since it uses less digits than its factorization.

40747137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 40747137 is about 6383.3484159961. The cubic root of 40747137 is about 344.1113783253. Note that the first 3 decimals are identical.

It can be divided in two parts, 4074 and 7137, that added together give a palindrome (11211).

The spelling of 40747137 in words is "forty million, seven hundred forty-seven thousand, one hundred thirty-seven".