130434780 has 48 divisors (see below), whose sum is σ = 417392640. Its totient is φ = 29813568.

The previous prime is 130434769. The next prime is 130434793. The reversal of 130434780 is 87434031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154860 + ... + 155699.

It is an arithmetic number, because the mean of its divisors is an integer number (8695680).

Almost surely, 2^130434780 is an apocalyptic number.

130434780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130434780 is an abundant number, since it is smaller than the sum of its proper divisors (286957860).

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

130434780 is a wasteful number, since it uses less digits than its factorization.

130434780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310578 (or 310576 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 130434780 is about 11420.8047001952. The cubic root of 130434780 is about 507.1438189305.

The spelling of 130434780 in words is "one hundred thirty million, four hundred thirty-four thousand, seven hundred eighty".