1998701232 has 240 divisors, whose sum is σ = 5956118784. Its totient is φ = 576576000.

The previous prime is 1998701227. The next prime is 1998701269. The reversal of 1998701232 is 2321078991.

It is a super-2 number, since 2×1998701232² = 7989613229596635648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13236357 + ... + 13236507.

Almost surely, 2^1998701232 is an apocalyptic number.

1998701232 is a gapful number since it is divisible by the number (12) 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 1998701232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2978059392).

1998701232 is an abundant number, since it is smaller than the sum of its proper divisors (3957417552).

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

1998701232 is a wasteful number, since it uses less digits than its factorization.

1998701232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1998701232 is about 44706.8365241827. The cubic root of 1998701232 is about 1259.6482666490.

It can be divided in two parts, 199870 and 1232, that added together give a palindrome (201102).

The spelling of 1998701232 in words is "one billion, nine hundred ninety-eight million, seven hundred one thousand, two hundred thirty-two".