40408914 has 48 divisors (see below), whose sum is σ = 100032192. Its totient is φ = 10655424.

The previous prime is 40408889. The next prime is 40408933. The reversal of 40408914 is 41980404.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4252 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (2084004).

Almost surely, 2^40408914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40408914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50016096).

40408914 is an abundant number, since it is smaller than the sum of its proper divisors (59623278).

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

40408914 is a wasteful number, since it uses less digits than its factorization.

40408914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731 (or 5718 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40408914 is about 6356.8006103700. The cubic root of 40408914 is about 343.1566290464.

The spelling of 40408914 in words is "forty million, four hundred eight thousand, nine hundred fourteen".