1152667998 has 12 divisors (see below), whose sum is σ = 2497447368. Its totient is φ = 384222660.

The previous prime is 1152667987. The next prime is 1152668057. The reversal of 1152667998 is 8997662511.

It is a super-2 number, since 2×1152667998² = 2657287027226656008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32018538 + ... + 32018573.

It is an arithmetic number, because the mean of its divisors is an integer number (208120614).

Almost surely, 2^1152667998 is an apocalyptic number.

1152667998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1152667998 is an abundant number, since it is smaller than the sum of its proper divisors (1344779370).

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

1152667998 is a wasteful number, since it uses less digits than its factorization.

1152667998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64037119 (or 64037116 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 1152667998 is about 33950.9646107441. The cubic root of 1152667998 is about 1048.4991400611.

It can be divided in two parts, 11526 and 67998, that added together give a square (79524 = 282²).

The spelling of 1152667998 in words is "one billion, one hundred fifty-two million, six hundred sixty-seven thousand, nine hundred ninety-eight".