130023740 has 48 divisors (see below), whose sum is σ = 340429824. Its totient is φ = 40526400.

The previous prime is 130023739. The next prime is 130023763. The reversal of 130023740 is 47320031.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 40676 + ... + 43755.

It is an arithmetic number, because the mean of its divisors is an integer number (7092288).

Almost surely, 2^130023740 is an apocalyptic number.

130023740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130023740 is an abundant number, since it is smaller than the sum of its proper divisors (210406084).

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

130023740 is a wasteful number, since it uses less digits than its factorization.

130023740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84458 (or 84456 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 130023740 is about 11402.7952713359. The cubic root of 130023740 is about 506.6105364489.

Adding to 130023740 its reverse (47320031), we get a palindrome (177343771).

The spelling of 130023740 in words is "one hundred thirty million, twenty-three thousand, seven hundred forty".