1031980998 has 32 divisors (see below), whose sum is σ = 2117517696. Its totient is φ = 335181888.

The previous prime is 1031980993. The next prime is 1031981011. The reversal of 1031980998 is 8990891301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031980993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22161 + ... + 50547.

It is an arithmetic number, because the mean of its divisors is an integer number (66172428).

Almost surely, 2^1031980998 is an apocalyptic number.

1031980998 is an abundant number, since it is smaller than the sum of its proper divisors (1085536698).

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

1031980998 is a wasteful number, since it uses less digits than its factorization.

1031980998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28548.

The product of its (nonzero) digits is 139968, while the sum is 48.

The square root of 1031980998 is about 32124.4610538449. The cubic root of 1031980998 is about 1010.5486670252.

The spelling of 1031980998 in words is "one billion, thirty-one million, nine hundred eighty thousand, nine hundred ninety-eight".