161828634 has 32 divisors (see below), whose sum is σ = 354461184. Its totient is φ = 48847280.

The previous prime is 161828633. The next prime is 161828657. The reversal of 161828634 is 436828161.

161828634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161828592 and 161828601.

It is not an unprimeable number, because it can be changed into a prime (161828633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12697 + ... + 22019.

It is an arithmetic number, because the mean of its divisors is an integer number (11076912).

Almost surely, 2^161828634 is an apocalyptic number.

161828634 is an abundant number, since it is smaller than the sum of its proper divisors (192632550).

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

161828634 is a wasteful number, since it uses less digits than its factorization.

161828634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9602.

The product of its digits is 55296, while the sum is 39.

The square root of 161828634 is about 12721.1883878826. The cubic root of 161828634 is about 544.9438923245.

The spelling of 161828634 in words is "one hundred sixty-one million, eight hundred twenty-eight thousand, six hundred thirty-four".