40718351 has 4 divisors (see below), whose sum is σ = 40786704. Its totient is φ = 40650000.

The previous prime is 40718347. The next prime is 40718357. The reversal of 40718351 is 15381704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40718351 - 2² = 40718347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40718357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33275 + ... + 34476.

It is an arithmetic number, because the mean of its divisors is an integer number (10196676).

Almost surely, 2^40718351 is an apocalyptic number.

40718351 is a deficient number, since it is larger than the sum of its proper divisors (68353).

40718351 is an equidigital number, since it uses as much as digits as its factorization.

40718351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68352.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 40718351 is about 6381.0932448915. The cubic root of 40718351 is about 344.0303262204.

The spelling of 40718351 in words is "forty million, seven hundred eighteen thousand, three hundred fifty-one".