130238940 has 48 divisors (see below), whose sum is σ = 392722848. Its totient is φ = 32058624.

The previous prime is 130238923. The next prime is 130238957. The reversal of 130238940 is 49832031.

It is an interprime number because it is at equal distance from previous prime (130238923) and next prime (130238957).

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

It is a junction number, because it is equal to n+sod(n) for n = 130238898 and 130238907.

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, 82707 + ... + 84266.

It is an arithmetic number, because the mean of its divisors is an integer number (8181726).

Almost surely, 2^130238940 is an apocalyptic number.

130238940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130238940 is an abundant number, since it is smaller than the sum of its proper divisors (262483908).

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

130238940 is a wasteful number, since it uses less digits than its factorization.

130238940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166998 (or 166996 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 130238940 is about 11412.2276528292. The cubic root of 130238940 is about 506.8898764514.

The spelling of 130238940 in words is "one hundred thirty million, two hundred thirty-eight thousand, nine hundred forty".