428724030 has 48 divisors (see below), whose sum is σ = 1196931600. Its totient is φ = 97993728.

The previous prime is 428724029. The next prime is 428724041. The reversal of 428724030 is 30427824.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144355 + ... + 147294.

It is an arithmetic number, because the mean of its divisors is an integer number (24936075).

Almost surely, 2^428724030 is an apocalyptic number.

428724030 is an abundant number, since it is smaller than the sum of its proper divisors (768207570).

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

428724030 is a wasteful number, since it uses less digits than its factorization.

428724030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291673 (or 291666 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 428724030 is about 20705.6521268952. The cubic root of 428724030 is about 754.0369165319.

The spelling of 428724030 in words is "four hundred twenty-eight million, seven hundred twenty-four thousand, thirty".