40430651 has 8 divisors (see below), whose sum is σ = 42631680. Its totient is φ = 38236968.

The previous prime is 40430647. The next prime is 40430659. The reversal of 40430651 is 15603404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40430651 - 2² = 40430647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40430659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12350 + ... + 15276.

It is an arithmetic number, because the mean of its divisors is an integer number (5328960).

Almost surely, 2^40430651 is an apocalyptic number.

40430651 is a deficient number, since it is larger than the sum of its proper divisors (2201029).

40430651 is a wasteful number, since it uses less digits than its factorization.

40430651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40430651 is about 6358.5101242351. The cubic root of 40430651 is about 343.2181489588.

The spelling of 40430651 in words is "forty million, four hundred thirty thousand, six hundred fifty-one".