1323895490 has 32 divisors (see below), whose sum is σ = 2521635840. Its totient is φ = 499060080.

The previous prime is 1323895477. The next prime is 1323895499. The reversal of 1323895490 is 945983231.

It is not an unprimeable number, because it can be changed into a prime (1323895499) 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, 6931295 + ... + 6931485.

It is an arithmetic number, because the mean of its divisors is an integer number (78801120).

Almost surely, 2^1323895490 is an apocalyptic number.

1323895490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323895490 is a deficient number, since it is larger than the sum of its proper divisors (1197740350).

1323895490 is an frugal number, since it uses more digits than its factorization.

1323895490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 1323895490 is about 36385.3746717002. The cubic root of 1323895490 is about 1098.0393420785.

The spelling of 1323895490 in words is "one billion, three hundred twenty-three million, eight hundred ninety-five thousand, four hundred ninety".