40415641 has 12 divisors (see below), whose sum is σ = 49489680. Its totient is φ = 32817960.

The previous prime is 40415633. The next prime is 40415653. The reversal of 40415641 is 14651404.

It is not a de Polignac number, because 40415641 - 2³ = 40415633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40419641) 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, 20775 + ... + 22636.

It is an arithmetic number, because the mean of its divisors is an integer number (4124140).

Almost surely, 2^40415641 is an apocalyptic number.

It is an amenable number.

40415641 is a deficient number, since it is larger than the sum of its proper divisors (9074039).

40415641 is a wasteful number, since it uses less digits than its factorization.

40415641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43444 (or 43437 counting only the distinct ones).

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

The square root of 40415641 is about 6357.3297067244. The cubic root of 40415641 is about 343.1756701138.

The spelling of 40415641 in words is "forty million, four hundred fifteen thousand, six hundred forty-one".