130400436 has 24 divisors (see below), whose sum is σ = 306492480. Its totient is φ = 43148992.

The previous prime is 130400423. The next prime is 130400441. The reversal of 130400436 is 634004031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38016 + ... + 41303.

It is an arithmetic number, because the mean of its divisors is an integer number (12770520).

Almost surely, 2^130400436 is an apocalyptic number.

It is an amenable number.

130400436 is an abundant number, since it is smaller than the sum of its proper divisors (176092044).

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

130400436 is a wasteful number, since it uses less digits than its factorization.

130400436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79463 (or 79461 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 130400436 is about 11419.3010293976. The cubic root of 130400436 is about 507.0993040237.

Adding to 130400436 its reverse (634004031), we get a palindrome (764404467).

The spelling of 130400436 in words is "one hundred thirty million, four hundred thousand, four hundred thirty-six".