1328423502 has 16 divisors (see below), whose sum is σ = 3036396672. Its totient is φ = 379549560.

The previous prime is 1328423497. The next prime is 1328423507. The reversal of 1328423502 is 2053248231.

It is an interprime number because it is at equal distance from previous prime (1328423497) and next prime (1328423507).

It is a self number, because there is not a number n which added to its sum of digits gives 1328423502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328423507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15814524 + ... + 15814607.

It is an arithmetic number, because the mean of its divisors is an integer number (189774792).

Almost surely, 2^1328423502 is an apocalyptic number.

1328423502 is an abundant number, since it is smaller than the sum of its proper divisors (1707973170).

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

1328423502 is a wasteful number, since it uses less digits than its factorization.

1328423502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31629143.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1328423502 is about 36447.5445263464. The cubic root of 1328423502 is about 1099.2897624559.

The spelling of 1328423502 in words is "one billion, three hundred twenty-eight million, four hundred twenty-three thousand, five hundred two".