130433778 has 24 divisors (see below), whose sum is σ = 287398800. Its totient is φ = 42740664.

The previous prime is 130433777. The next prime is 130433801. The reversal of 130433778 is 877334031.

It is not an unprimeable number, because it can be changed into a prime (130433773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60348 + ... + 62471.

It is an arithmetic number, because the mean of its divisors is an integer number (11974950).

Almost surely, 2^130433778 is an apocalyptic number.

130433778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

130433778 is an abundant number, since it is smaller than the sum of its proper divisors (156965022).

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

130433778 is a wasteful number, since it uses less digits than its factorization.

130433778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122886 (or 122883 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 130433778 is about 11420.7608327992. The cubic root of 130433778 is about 507.1425203009.

The spelling of 130433778 in words is "one hundred thirty million, four hundred thirty-three thousand, seven hundred seventy-eight".