122691828 has 24 divisors (see below), whose sum is σ = 327178432. Its totient is φ = 35054784.

The previous prime is 122691827. The next prime is 122691841. The reversal of 122691828 is 828196221.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122691823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730225 + ... + 730392.

Almost surely, 2^122691828 is an apocalyptic number.

It is an amenable number.

122691828 is an abundant number, since it is smaller than the sum of its proper divisors (204486604).

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

122691828 is a wasteful number, since it uses less digits than its factorization.

122691828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460631 (or 1460629 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 122691828 is about 11076.6343263647. The cubic root of 122691828 is about 496.9032977990.

The spelling of 122691828 in words is "one hundred twenty-two million, six hundred ninety-one thousand, eight hundred twenty-eight".