40474944 has 112 divisors (see below), whose sum is σ = 121310400. Its totient is φ = 13229568.

The previous prime is 40474897. The next prime is 40474957. The reversal of 40474944 is 44947404.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40474899 and 40474908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101754 + ... + 102150.

Almost surely, 2^40474944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40474944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60655200).

40474944 is an abundant number, since it is smaller than the sum of its proper divisors (80835456).

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

40474944 is a wasteful number, since it uses less digits than its factorization.

40474944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 40474944 is about 6361.9921408314. The cubic root of 40474944 is about 343.3434385019.

The spelling of 40474944 in words is "forty million, four hundred seventy-four thousand, nine hundred forty-four".