40349712 has 40 divisors (see below), whose sum is σ = 112256704. Its totient is φ = 12415104.

The previous prime is 40349707. The next prime is 40349713. The reversal of 40349712 is 21794304.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40349712.

It is not an unprimeable number, because it can be changed into a prime (40349713) 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, 31708 + ... + 32955.

Almost surely, 2^40349712 is an apocalyptic number.

It is an amenable number.

40349712 is an abundant number, since it is smaller than the sum of its proper divisors (71906992).

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

40349712 is a wasteful number, since it uses less digits than its factorization.

40349712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64687 (or 64681 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40349712 is about 6352.1423157861. The cubic root of 40349712 is about 342.9889639937.

The spelling of 40349712 in words is "forty million, three hundred forty-nine thousand, seven hundred twelve".