1898707968 has 132 divisors (see below), whose sum is σ = 5805455760. Its totient is φ = 595623936.

The previous prime is 1898707961. The next prime is 1898707997. The reversal of 1898707968 is 8697078981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898707961) 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, 150613 + ... + 162731.

Almost surely, 2^1898707968 is an apocalyptic number.

1898707968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1898707968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2902727880).

1898707968 is an abundant number, since it is smaller than the sum of its proper divisors (3906747792).

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

1898707968 is a wasteful number, since it uses less digits than its factorization.

1898707968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12162 (or 12141 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 63.

The square root of 1898707968 is about 43574.1662915081. The cubic root of 1898707968 is about 1238.2815182203.

The spelling of 1898707968 in words is "one billion, eight hundred ninety-eight million, seven hundred seven thousand, nine hundred sixty-eight".