3125730 has 32 divisors (see below), whose sum is σ = 7746048. Its totient is φ = 806400.

The previous prime is 3125729. The next prime is 3125737. The reversal of 3125730 is 375213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3125697 and 3125706.

It is not an unprimeable number, because it can be changed into a prime (3125737) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 751 + ... + 2610.

It is an arithmetic number, because the mean of its divisors is an integer number (242064).

Almost surely, 2^3125730 is an apocalyptic number.

3125730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3125730 is an abundant number, since it is smaller than the sum of its proper divisors (4620318).

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

3125730 is a wasteful number, since it uses less digits than its factorization.

3125730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 3125730 is about 1767.9734160897. The cubic root of 3125730 is about 146.2122702000.

The spelling of 3125730 in words is "three million, one hundred twenty-five thousand, seven hundred thirty".