1322826940 has 24 divisors (see below), whose sum is σ = 2804911200. Its totient is φ = 523992768.

The previous prime is 1322826913. The next prime is 1322826959. The reversal of 1322826940 is 496282231.

It is a happy number.

It is a super-2 number, since 2×1322826940² = 3499742226379527200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1322826940.

It is a congruent number.

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, 319015 + ... + 323134.

It is an arithmetic number, because the mean of its divisors is an integer number (116871300).

Almost surely, 2^1322826940 is an apocalyptic number.

1322826940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322826940 is an abundant number, since it is smaller than the sum of its proper divisors (1482084260).

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

1322826940 is a wasteful number, since it uses less digits than its factorization.

1322826940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642261 (or 642259 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1322826940 is about 36370.6879231064. The cubic root of 1322826940 is about 1097.7438439925.

The spelling of 1322826940 in words is "one billion, three hundred twenty-two million, eight hundred twenty-six thousand, nine hundred forty".