4642390 has 16 divisors (see below), whose sum is σ = 8582832. Its totient is φ = 1806624.

The previous prime is 4642387. The next prime is 4642397. The reversal of 4642390 is 932464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4642397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5904 + ... + 6643.

It is an arithmetic number, because the mean of its divisors is an integer number (536427).

Almost surely, 2^4642390 is an apocalyptic number.

4642390 is a deficient number, since it is larger than the sum of its proper divisors (3940442).

4642390 is a wasteful number, since it uses less digits than its factorization.

4642390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12591.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 4642390 is about 2154.6206162571. The cubic root of 4642390 is about 166.8196506436.

It can be divided in two parts, 46 and 42390, that added together give a square (42436 = 206²).

The spelling of 4642390 in words is "four million, six hundred forty-two thousand, three hundred ninety".