40364651 has 4 divisors (see below), whose sum is σ = 40455000. Its totient is φ = 40274304.

The previous prime is 40364633. The next prime is 40364657. The reversal of 40364651 is 15646304.

It is a happy number.

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 40364651 - 2²² = 36170347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40364657) 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, 44501 + ... + 45398.

It is an arithmetic number, because the mean of its divisors is an integer number (10113750).

Almost surely, 2^40364651 is an apocalyptic number.

40364651 is a deficient number, since it is larger than the sum of its proper divisors (90349).

40364651 is an equidigital number, since it uses as much as digits as its factorization.

40364651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90348.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40364651 is about 6353.3181094606. The cubic root of 40364651 is about 343.0312879629.

The spelling of 40364651 in words is "forty million, three hundred sixty-four thousand, six hundred fifty-one".