40415380 has 24 divisors (see below), whose sum is σ = 85044960. Its totient is φ = 16133280.

The previous prime is 40415371. The next prime is 40415407. The reversal of 40415380 is 8351404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9651 + ... + 13189.

It is an arithmetic number, because the mean of its divisors is an integer number (3543540).

Almost surely, 2^40415380 is an apocalyptic number.

It is an amenable number.

40415380 is an abundant number, since it is smaller than the sum of its proper divisors (44629580).

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

40415380 is a wasteful number, since it uses less digits than its factorization.

40415380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40415380 is about 6357.3091792047. The cubic root of 40415380 is about 343.1749313813.

Adding to 40415380 its reverse (8351404), we get a palindrome (48766784).

The spelling of 40415380 in words is "forty million, four hundred fifteen thousand, three hundred eighty".