6264402421 has 4 divisors (see below), whose sum is σ = 6294091744. Its totient is φ = 6234713100.

The previous prime is 6264402413. The next prime is 6264402439. The reversal of 6264402421 is 1242044626.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6264402421 - 2³ = 6264402413 is a prime.

It is a super-2 number, since 2×6264402421² = 78485475384461322482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6264402461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14844345 + ... + 14844766.

It is an arithmetic number, because the mean of its divisors is an integer number (1573522936).

Almost surely, 2^6264402421 is an apocalyptic number.

It is an amenable number.

6264402421 is a deficient number, since it is larger than the sum of its proper divisors (29689323).

6264402421 is a wasteful number, since it uses less digits than its factorization.

6264402421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29689322.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 6264402421 is about 79147.9779969141. The cubic root of 6264402421 is about 1843.4295698155.

The spelling of 6264402421 in words is "six billion, two hundred sixty-four million, four hundred two thousand, four hundred twenty-one".