40418946 has 16 divisors (see below), whose sum is σ = 89820000. Its totient is φ = 13472964.

The previous prime is 40418941. The next prime is 40418957. The reversal of 40418946 is 64981404.

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 40418946.

It is not an unprimeable number, because it can be changed into a prime (40418941) 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, 374196 + ... + 374303.

It is an arithmetic number, because the mean of its divisors is an integer number (5613750).

Almost surely, 2^40418946 is an apocalyptic number.

40418946 is an abundant number, since it is smaller than the sum of its proper divisors (49401054).

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

40418946 is a wasteful number, since it uses less digits than its factorization.

40418946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748510 (or 748504 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40418946 is about 6357.5896375906. The cubic root of 40418946 is about 343.1850242866.

The spelling of 40418946 in words is "forty million, four hundred eighteen thousand, nine hundred forty-six".