40250917 has 16 divisors (see below), whose sum is σ = 48885120. Its totient is φ = 32352768.

The previous prime is 40250909. The next prime is 40250923. The reversal of 40250917 is 71905204.

It is a happy number.

It is not a de Polignac number, because 40250917 - 2³ = 40250909 is a prime.

It is a Duffinian number.

40250917 is a Rhonda number in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40250957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48258 + ... + 49084.

It is an arithmetic number, because the mean of its divisors is an integer number (3055320).

Almost surely, 2^40250917 is an apocalyptic number.

It is an amenable number.

40250917 is a deficient number, since it is larger than the sum of its proper divisors (8634203).

40250917 is a wasteful number, since it uses less digits than its factorization.

40250917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 40250917 is about 6344.3610395374. The cubic root of 40250917 is about 342.7088026523.

The spelling of 40250917 in words is "forty million, two hundred fifty thousand, nine hundred seventeen".