3138461830 has 32 divisors (see below), whose sum is σ = 6458837760. Its totient is φ = 1075615200.

The previous prime is 3138461797. The next prime is 3138461863. The reversal of 3138461830 is 381648313.

It is an interprime number because it is at equal distance from previous prime (3138461797) and next prime (3138461863).

It is a self number, because there is not a number n which added to its sum of digits gives 3138461830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203905 + ... + 218755.

It is an arithmetic number, because the mean of its divisors is an integer number (201838680).

Almost surely, 2^3138461830 is an apocalyptic number.

3138461830 is an abundant number, since it is smaller than the sum of its proper divisors (3320375930).

3138461830 is a wasteful number, since it uses less digits than its factorization.

3138461830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17884.

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

The square root of 3138461830 is about 56021.9763128721. The cubic root of 3138461830 is about 1464.1052020487.

The spelling of 3138461830 in words is "three billion, one hundred thirty-eight million, four hundred sixty-one thousand, eight hundred thirty".