130429928 has 8 divisors (see below), whose sum is σ = 244556130. Its totient is φ = 65214960.

The previous prime is 130429919. The next prime is 130429931. The reversal of 130429928 is 829924031.

It can be written as a sum of positive squares in only one way, i.e., 129914404 + 515524 = 11398^2 + 718^2 .

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

It is a super-2 number, since 2×130429928² = 34023932236170368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130429891 and 130429900.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8151863 + ... + 8151878.

Almost surely, 2^130429928 is an apocalyptic number.

It is an amenable number.

130429928 is a deficient number, since it is larger than the sum of its proper divisors (114126202).

130429928 is a wasteful number, since it uses less digits than its factorization.

130429928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16303747 (or 16303743 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 130429928 is about 11420.5922788619. The cubic root of 130429928 is about 507.1375304945.

The spelling of 130429928 in words is "one hundred thirty million, four hundred twenty-nine thousand, nine hundred twenty-eight".