5342642021 has 12 divisors (see below), whose sum is σ = 5596242156. Its totient is φ = 5099405760.

The previous prime is 5342642017. The next prime is 5342642029. The reversal of 5342642021 is 1202462435.

It can be written as a sum of positive squares in 2 ways, for example, as 1803700900 + 3538941121 = 42470^2 + 59489^2 .

It is not a de Polignac number, because 5342642021 - 2² = 5342642017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5342642029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32075 + ... + 108231.

It is an arithmetic number, because the mean of its divisors is an integer number (466353513).

Almost surely, 2^5342642021 is an apocalyptic number.

It is an amenable number.

5342642021 is a deficient number, since it is larger than the sum of its proper divisors (253600135).

5342642021 is an equidigital number, since it uses as much as digits as its factorization.

5342642021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76292 (or 76261 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 5342642021 is about 73093.3787767401. The cubic root of 5342642021 is about 1748.1768246232.

The spelling of 5342642021 in words is "five billion, three hundred forty-two million, six hundred forty-two thousand, twenty-one".