1322690328 has 48 divisors (see below), whose sum is σ = 3641024400. Its totient is φ = 433667520.

The previous prime is 1322690293. The next prime is 1322690429. The reversal of 1322690328 is 8230962231.

1322690328 is a `hidden beast` number, since 1 + 322 + 6 + 9 + 0 + 328 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1322690292 and 1322690301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146188 + ... + 154971.

It is an arithmetic number, because the mean of its divisors is an integer number (75854675).

Almost surely, 2^1322690328 is an apocalyptic number.

1322690328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1322690328 is an abundant number, since it is smaller than the sum of its proper divisors (2318334072).

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

1322690328 is a wasteful number, since it uses less digits than its factorization.

1322690328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301232 (or 301225 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1322690328 is about 36368.8098238037. The cubic root of 1322690328 is about 1097.7060536763.

The spelling of 1322690328 in words is "one billion, three hundred twenty-two million, six hundred ninety thousand, three hundred twenty-eight".