1331044998 has 16 divisors (see below), whose sum is σ = 2686514160. Its totient is φ = 439610976.

The previous prime is 1331044997. The next prime is 1331044999. The reversal of 1331044998 is 8994401331.

It is an interprime number because it is at equal distance from previous prime (1331044997) and next prime (1331044999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331044991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016965 + ... + 1018272.

It is an arithmetic number, because the mean of its divisors is an integer number (167907135).

Almost surely, 2^1331044998 is an apocalyptic number.

1331044998 is an abundant number, since it is smaller than the sum of its proper divisors (1355469162).

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

1331044998 is a wasteful number, since it uses less digits than its factorization.

1331044998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035351.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1331044998 is about 36483.4893890373. The cubic root of 1331044998 is about 1100.0123960036.

The spelling of 1331044998 in words is "one billion, three hundred thirty-one million, forty-four thousand, nine hundred ninety-eight".