5642460021 has 24 divisors (see below), whose sum is σ = 8755834752. Its totient is φ = 3218512000.

The previous prime is 5642459993. The next prime is 5642460059. The reversal of 5642460021 is 1200642465.

It is not a de Polignac number, because 5642460021 - 2⁵ = 5642459989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642460721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451005 + ... + 463346.

It is an arithmetic number, because the mean of its divisors is an integer number (364826448).

Almost surely, 2^5642460021 is an apocalyptic number.

5642460021 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5642460021 is a deficient number, since it is larger than the sum of its proper divisors (3113374731).

5642460021 is a wasteful number, since it uses less digits than its factorization.

5642460021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914393 (or 914382 counting only the distinct ones).

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

The square root of 5642460021 is about 75116.3099532984. The cubic root of 5642460021 is about 1780.2848533100.

The spelling of 5642460021 in words is "five billion, six hundred forty-two million, four hundred sixty thousand, twenty-one".