40220415 has 32 divisors (see below), whose sum is σ = 71870400. Its totient is φ = 21340800.

The previous prime is 40220407. The next prime is 40220441. The reversal of 40220415 is 51402204.

It is not a de Polignac number, because 40220415 - 2³ = 40220407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30265 + ... + 31565.

It is an arithmetic number, because the mean of its divisors is an integer number (2245950).

Almost surely, 2^40220415 is an apocalyptic number.

40220415 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40220415 is a deficient number, since it is larger than the sum of its proper divisors (31649985).

40220415 is a wasteful number, since it uses less digits than its factorization.

40220415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40220415 is about 6341.9567169762. The cubic root of 40220415 is about 342.6222129438.

Adding to 40220415 its reverse (51402204), we get a palindrome (91622619).

The spelling of 40220415 in words is "forty million, two hundred twenty thousand, four hundred fifteen".