1898133020 has 24 divisors (see below), whose sum is σ = 4555519584. Its totient is φ = 650788416.

The previous prime is 1898133019. The next prime is 1898133053. The reversal of 1898133020 is 203318981.

It is a super-2 number, since 2×1898133020² = 7205817923228640800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6778907 + ... + 6779186.

It is an arithmetic number, because the mean of its divisors is an integer number (189813316).

Almost surely, 2^1898133020 is an apocalyptic number.

1898133020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1898133020 is an abundant number, since it is smaller than the sum of its proper divisors (2657386564).

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

1898133020 is a wasteful number, since it uses less digits than its factorization.

1898133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13558109 (or 13558107 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1898133020 is about 43567.5684425927. The cubic root of 1898133020 is about 1238.1565175413.

The spelling of 1898133020 in words is "one billion, eight hundred ninety-eight million, one hundred thirty-three thousand, twenty".