3125430 has 144 divisors (see below), whose sum is σ = 10456992. Its totient is φ = 633600.

The previous prime is 3125387. The next prime is 3125449. The reversal of 3125430 is 345213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 76210 + ... + 76250.

It is an arithmetic number, because the mean of its divisors is an integer number (72618).

Almost surely, 2^3125430 is an apocalyptic number.

3125430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3125430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5228496).

3125430 is an abundant number, since it is smaller than the sum of its proper divisors (7331562).

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

3125430 is a wasteful number, since it uses less digits than its factorization.

3125430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3125430 is about 1767.8885711492. Note that the first 3 decimals coincide. The cubic root of 3125430 is about 146.2075923504.

The spelling of 3125430 in words is "three million, one hundred twenty-five thousand, four hundred thirty".