30256146 has 16 divisors (see below), whose sum is σ = 67236000. Its totient is φ = 10085364.

The previous prime is 30256123. The next prime is 30256157. The reversal of 30256146 is 64165203.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280096 + ... + 280203.

It is an arithmetic number, because the mean of its divisors is an integer number (4202250).

Almost surely, 2^30256146 is an apocalyptic number.

30256146 is an abundant number, since it is smaller than the sum of its proper divisors (36979854).

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

30256146 is a wasteful number, since it uses less digits than its factorization.

30256146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560310 (or 560304 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30256146 is about 5500.5586988960. The cubic root of 30256146 is about 311.6050846647.

The spelling of 30256146 in words is "thirty million, two hundred fifty-six thousand, one hundred forty-six".