1642870704 has 80 divisors (see below), whose sum is σ = 4324008960. Its totient is φ = 537384960.

The previous prime is 1642870693. The next prime is 1642870717. The reversal of 1642870704 is 4070782461.

It is a super-2 number, since 2×1642870704² = 5398048300122911232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813504 + ... + 815520.

It is an arithmetic number, because the mean of its divisors is an integer number (54050112).

Almost surely, 2^1642870704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642870704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2162004480).

1642870704 is an abundant number, since it is smaller than the sum of its proper divisors (2681138256).

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

1642870704 is a wasteful number, since it uses less digits than its factorization.

1642870704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 1642870704 is about 40532.3414571623. The cubic root of 1642870704 is about 1179.9613853111.

The spelling of 1642870704 in words is "one billion, six hundred forty-two million, eight hundred seventy thousand, seven hundred four".