131824428 has 24 divisors (see below), whose sum is σ = 310468032. Its totient is φ = 43530384.

The previous prime is 131824423. The next prime is 131824463. The reversal of 131824428 is 824428131.

It is not an unprimeable number, because it can be changed into a prime (131824423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50050 + ... + 52617.

It is an arithmetic number, because the mean of its divisors is an integer number (12936168).

Almost surely, 2^131824428 is an apocalyptic number.

It is an amenable number.

131824428 is an abundant number, since it is smaller than the sum of its proper divisors (178643604).

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

131824428 is a wasteful number, since it uses less digits than its factorization.

131824428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102781 (or 102779 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 131824428 is about 11481.4819600956. The cubic root of 131824428 is about 508.9384918529.

The spelling of 131824428 in words is "one hundred thirty-one million, eight hundred twenty-four thousand, four hundred twenty-eight".