40940415 has 12 divisors (see below), whose sum is σ = 70963464. Its totient is φ = 21834864.

The previous prime is 40940413. The next prime is 40940423. The reversal of 40940415 is 51404904.

It is not a de Polignac number, because 40940415 - 2¹ = 40940413 is a prime.

It is a super-2 number, since 2×40940415² = 3352235160744450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40940411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 454849 + ... + 454938.

It is an arithmetic number, because the mean of its divisors is an integer number (5913622).

Almost surely, 2^40940415 is an apocalyptic number.

40940415 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40940415 is a deficient number, since it is larger than the sum of its proper divisors (30023049).

40940415 is a wasteful number, since it uses less digits than its factorization.

40940415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909798 (or 909795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40940415 is about 6398.4697389298. The cubic root of 40940415 is about 344.6546007563.

The spelling of 40940415 in words is "forty million, nine hundred forty thousand, four hundred fifteen".