1642300644 has 24 divisors (see below), whose sum is σ = 4033721440. Its totient is φ = 518621184.

The previous prime is 1642300643. The next prime is 1642300651. The reversal of 1642300644 is 4460032461.

It is not an unprimeable number, because it can be changed into a prime (1642300643) 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, 3601309 + ... + 3601764.

Almost surely, 2^1642300644 is an apocalyptic number.

It is an amenable number.

1642300644 is an abundant number, since it is smaller than the sum of its proper divisors (2391420796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1642300644 is a wasteful number, since it uses less digits than its factorization.

1642300644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203099 (or 7203097 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1642300644 is about 40525.3086848206. The cubic root of 1642300644 is about 1179.8248911850.

The spelling of 1642300644 in words is "one billion, six hundred forty-two million, three hundred thousand, six hundred forty-four".