3138730 has 16 divisors (see below), whose sum is σ = 6456960. Its totient is φ = 1076112.

The previous prime is 3138691. The next prime is 3138767. The reversal of 3138730 is 378313.

It is a junction number, because it is equal to n+sod(n) for n = 3138695 and 3138704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22350 + ... + 22489.

It is an arithmetic number, because the mean of its divisors is an integer number (403560).

Almost surely, 2^3138730 is an apocalyptic number.

3138730 is an abundant number, since it is smaller than the sum of its proper divisors (3318230).

3138730 is a wasteful number, since it uses less digits than its factorization.

3138730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44853.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 3138730 is about 1771.6461271936. The cubic root of 3138730 is about 146.4146901659.

The spelling of 3138730 in words is "three million, one hundred thirty-eight thousand, seven hundred thirty".