1642230870 has 32 divisors (see below), whose sum is σ = 4504405248. Its totient is φ = 375367008.

The previous prime is 1642230869. The next prime is 1642230881. The reversal of 1642230870 is 780322461.

It is a congruent number.

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, 3909864 + ... + 3910283.

It is an arithmetic number, because the mean of its divisors is an integer number (140762664).

Almost surely, 2^1642230870 is an apocalyptic number.

1642230870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1642230870 is an abundant number, since it is smaller than the sum of its proper divisors (2862174378).

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

1642230870 is a wasteful number, since it uses less digits than its factorization.

1642230870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820164.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1642230870 is about 40524.4478062317. The cubic root of 1642230870 is about 1179.8081824563.

The spelling of 1642230870 in words is "one billion, six hundred forty-two million, two hundred thirty thousand, eight hundred seventy".