4722990 has 16 divisors (see below), whose sum is σ = 11335248. Its totient is φ = 1259456.

The previous prime is 4722979. The next prime is 4723021. The reversal of 4722990 is 992274.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 78687 + ... + 78746.

It is an arithmetic number, because the mean of its divisors is an integer number (708453).

Almost surely, 2^4722990 is an apocalyptic number.

4722990 is an abundant number, since it is smaller than the sum of its proper divisors (6612258).

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

4722990 is a wasteful number, since it uses less digits than its factorization.

4722990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157443.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 4722990 is about 2173.2441188233. The cubic root of 4722990 is about 167.7795436012.

The spelling of 4722990 in words is "four million, seven hundred twenty-two thousand, nine hundred ninety".