1368791432 has 8 divisors (see below), whose sum is σ = 2566483950. Its totient is φ = 684395712.

The previous prime is 1368791419. The next prime is 1368791443. The reversal of 1368791432 is 2341978631.

It can be written as a sum of positive squares in only one way, i.e., 1293553156 + 75238276 = 35966^2 + 8674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1368791432² = 3747179968633221248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85549457 + ... + 85549472.

Almost surely, 2^1368791432 is an apocalyptic number.

It is an amenable number.

1368791432 is a deficient number, since it is larger than the sum of its proper divisors (1197692518).

1368791432 is a wasteful number, since it uses less digits than its factorization.

1368791432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171098935 (or 171098931 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 1368791432 is about 36997.1814061558. The cubic root of 1368791432 is about 1110.3138554627.

The spelling of 1368791432 in words is "one billion, three hundred sixty-eight million, seven hundred ninety-one thousand, four hundred thirty-two".