130447940 has 48 divisors (see below), whose sum is σ = 321549312. Its totient is φ = 43514496.

The previous prime is 130447931. The next prime is 130447943. The reversal of 130447940 is 49744031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 130447897 and 130447906.

It is not an unprimeable number, because it can be changed into a prime (130447943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7412 + ... + 17771.

It is an arithmetic number, because the mean of its divisors is an integer number (6698944).

Almost surely, 2^130447940 is an apocalyptic number.

130447940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130447940 is an abundant number, since it is smaller than the sum of its proper divisors (191101372).

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

130447940 is a wasteful number, since it uses less digits than its factorization.

130447940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25236 (or 25234 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 130447940 is about 11421.3808272030. The cubic root of 130447940 is about 507.1608741674.

The spelling of 130447940 in words is "one hundred thirty million, four hundred forty-seven thousand, nine hundred forty".