40401712 has 20 divisors (see below), whose sum is σ = 84300160. Its totient is φ = 18646848.

The previous prime is 40401709. The next prime is 40401719. The reversal of 40401712 is 21710404.

It is a self number, because there is not a number n which added to its sum of digits gives 40401712.

It is not an unprimeable number, because it can be changed into a prime (40401719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96912 + ... + 97327.

It is an arithmetic number, because the mean of its divisors is an integer number (4215008).

Almost surely, 2^40401712 is an apocalyptic number.

It is an amenable number.

40401712 is an abundant number, since it is smaller than the sum of its proper divisors (43898448).

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

40401712 is a wasteful number, since it uses less digits than its factorization.

40401712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194260 (or 194254 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40401712 is about 6356.2341051915. The cubic root of 40401712 is about 343.1362411284.

The spelling of 40401712 in words is "forty million, four hundred one thousand, seven hundred twelve".