40670637 has 12 divisors (see below), whose sum is σ = 63081216. Its totient is φ = 23240280.

The previous prime is 40670599. The next prime is 40670657. The reversal of 40670637 is 73607604.

It is not a de Polignac number, because 40670637 - 2⁸ = 40670381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40670598 and 40670607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40670657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138189 + ... + 138482.

It is an arithmetic number, because the mean of its divisors is an integer number (5256768).

Almost surely, 2^40670637 is an apocalyptic number.

It is an amenable number.

40670637 is a deficient number, since it is larger than the sum of its proper divisors (22410579).

40670637 is a wasteful number, since it uses less digits than its factorization.

40670637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276688 (or 276681 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 40670637 is about 6377.3534479437. The cubic root of 40670637 is about 343.8958947867.

The spelling of 40670637 in words is "forty million, six hundred seventy thousand, six hundred thirty-seven".