40415396 has 36 divisors (see below), whose sum is σ = 84512988. Its totient is φ = 16849728.

The previous prime is 40415371. The next prime is 40415407. The reversal of 40415396 is 69351404.

It can be written as a sum of positive squares in 2 ways, for example, as 17757796 + 22657600 = 4214^2 + 4760^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4466 + ... + 10038.

It is an arithmetic number, because the mean of its divisors is an integer number (2347583).

Almost surely, 2^40415396 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 40415396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42256494).

40415396 is an abundant number, since it is smaller than the sum of its proper divisors (44097592).

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

40415396 is a wasteful number, since it uses less digits than its factorization.

40415396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628 (or 5619 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 40415396 is about 6357.3104375986. The cubic root of 40415396 is about 343.1749766677.

The spelling of 40415396 in words is "forty million, four hundred fifteen thousand, three hundred ninety-six".