4972428 has 60 divisors (see below), whose sum is σ = 13213200. Its totient is φ = 1630368.

The previous prime is 4972423. The next prime is 4972469. The reversal of 4972428 is 8242794.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4972392 and 4972401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4972423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33298 + ... + 33446.

It is an arithmetic number, because the mean of its divisors is an integer number (220220).

Almost surely, 2^4972428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4972428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6606600).

4972428 is an abundant number, since it is smaller than the sum of its proper divisors (8240772).

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

4972428 is a wasteful number, since it uses less digits than its factorization.

4972428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 257 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 4972428 is about 2229.8941678923. The cubic root of 4972428 is about 170.6826987571.

The spelling of 4972428 in words is "four million, nine hundred seventy-two thousand, four hundred twenty-eight".