402246651 has 8 divisors (see below), whose sum is σ = 536961040. Its totient is φ = 267848352.

The previous prime is 402246631. The next prime is 402246653. The reversal of 402246651 is 156642204.

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

It is not a de Polignac number, because 402246651 - 2⁵ = 402246619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402246653) 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, 76036 + ... + 81153.

It is an arithmetic number, because the mean of its divisors is an integer number (67120130).

Almost surely, 2^402246651 is an apocalyptic number.

402246651 is a deficient number, since it is larger than the sum of its proper divisors (134714389).

402246651 is a wasteful number, since it uses less digits than its factorization.

402246651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158045.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 402246651 is about 20056.0876294456. The cubic root of 402246651 is about 738.1831806359.

Adding to 402246651 its reverse (156642204), we get a palindrome (558888855).

The spelling of 402246651 in words is "four hundred two million, two hundred forty-six thousand, six hundred fifty-one".