90782130 has 16 divisors (see below), whose sum is σ = 217877184. Its totient is φ = 24208560.

The previous prime is 90782123. The next prime is 90782149. The reversal of 90782130 is 3128709.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3026071 = 90782130 / (9 + 0 + 7 + 8 + 2 + 1 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513006 + ... + 1513065.

It is an arithmetic number, because the mean of its divisors is an integer number (13617324).

Almost surely, 2^90782130 is an apocalyptic number.

90782130 is an abundant number, since it is smaller than the sum of its proper divisors (127095054).

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

90782130 is a wasteful number, since it uses less digits than its factorization.

90782130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026081.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 90782130 is about 9527.9656800389. The cubic root of 90782130 is about 449.4348955842.

The spelling of 90782130 in words is "ninety million, seven hundred eighty-two thousand, one hundred thirty".