1322623940 has 48 divisors (see below), whose sum is σ = 3032527680. Its totient is φ = 480554880.

The previous prime is 1322623889. The next prime is 1322623943. The reversal of 1322623940 is 493262231.

It is a super-2 number, since 2×1322623940² = 3498668173322247200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1322623897 and 1322623906.

It is not an unprimeable number, because it can be changed into a prime (1322623943) 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, 444899 + ... + 447861.

It is an arithmetic number, because the mean of its divisors is an integer number (63177660).

Almost surely, 2^1322623940 is an apocalyptic number.

1322623940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322623940 is an abundant number, since it is smaller than the sum of its proper divisors (1709903740).

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

1322623940 is a wasteful number, since it uses less digits than its factorization.

1322623940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012 (or 5010 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1322623940 is about 36367.8971072016. The cubic root of 1322623940 is about 1097.6876881458.

The spelling of 1322623940 in words is "one billion, three hundred twenty-two million, six hundred twenty-three thousand, nine hundred forty".