4722538 has 4 divisors (see below), whose sum is σ = 7083810. Its totient is φ = 2361268.

The previous prime is 4722533. The next prime is 4722539. The reversal of 4722538 is 8352274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3736489 + 986049 = 1933^2 + 993^2 .

It is a super-2 number, since 2×4722538² = 44604730322888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4722533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1180633 + ... + 1180636.

Almost surely, 2^4722538 is an apocalyptic number.

4722538 is a deficient number, since it is larger than the sum of its proper divisors (2361272).

4722538 is a wasteful number, since it uses less digits than its factorization.

4722538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361271.

The product of its digits is 13440, while the sum is 31.

The square root of 4722538 is about 2173.1401243362. The cubic root of 4722538 is about 167.7741911463.

The spelling of 4722538 in words is "four million, seven hundred twenty-two thousand, five hundred thirty-eight".