1230690732 has 12 divisors (see below), whose sum is σ = 2871611736. Its totient is φ = 410230240.

The previous prime is 1230690709. The next prime is 1230690749. The reversal of 1230690732 is 2370960321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1230690693 and 1230690702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51278769 + ... + 51278792.

It is an arithmetic number, because the mean of its divisors is an integer number (239300978).

Almost surely, 2^1230690732 is an apocalyptic number.

1230690732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230690732 is an abundant number, since it is smaller than the sum of its proper divisors (1640921004).

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

1230690732 is a wasteful number, since it uses less digits than its factorization.

1230690732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102557568 (or 102557566 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 1230690732 is about 35081.2019748469. The cubic root of 1230690732 is about 1071.6417955116.

The spelling of 1230690732 in words is "one billion, two hundred thirty million, six hundred ninety thousand, seven hundred thirty-two".