40670736 has 40 divisors (see below), whose sum is σ = 105305760. Its totient is φ = 13526016.

The previous prime is 40670723. The next prime is 40670737. The reversal of 40670736 is 63707604.

It is a junction number, because it is equal to n+sod(n) for n = 40670697 and 40670706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40670737) 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, 31675 + ... + 32933.

It is an arithmetic number, because the mean of its divisors is an integer number (2632644).

Almost surely, 2^40670736 is an apocalyptic number.

It is an amenable number.

40670736 is an abundant number, since it is smaller than the sum of its proper divisors (64635024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40670736 is a wasteful number, since it uses less digits than its factorization.

40670736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1937 counting only the distinct ones).

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

The square root of 40670736 is about 6377.3612097795. The cubic root of 40670736 is about 343.8961738222.

The spelling of 40670736 in words is "forty million, six hundred seventy thousand, seven hundred thirty-six".