40942017 has 40 divisors (see below), whose sum is σ = 66211200. Its totient is φ = 25124256.

The previous prime is 40942003. The next prime is 40942021. The reversal of 40942017 is 71024904.

It is a happy number.

It is not a de Polignac number, because 40942017 - 2⁷ = 40941889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40942037) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 56584 + ... + 57302.

It is an arithmetic number, because the mean of its divisors is an integer number (1655280).

Almost surely, 2^40942017 is an apocalyptic number.

It is an amenable number.

40942017 is a deficient number, since it is larger than the sum of its proper divisors (25269183).

40942017 is a wasteful number, since it uses less digits than its factorization.

40942017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40942017 is about 6398.5949238876. The cubic root of 40942017 is about 344.6590961469.

The spelling of 40942017 in words is "forty million, nine hundred forty-two thousand, seventeen".