210722074 has 4 divisors (see below), whose sum is σ = 316083114. Its totient is φ = 105361036.

The previous prime is 210722063. The next prime is 210722101. The reversal of 210722074 is 470227012.

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., 192016449 + 18705625 = 13857^2 + 4325^2 .

It is a super-2 number, since 2×210722074² = 88807584941722952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52680517 + ... + 52680520.

Almost surely, 2^210722074 is an apocalyptic number.

210722074 is a deficient number, since it is larger than the sum of its proper divisors (105361040).

210722074 is a wasteful number, since it uses less digits than its factorization.

210722074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105361039.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 210722074 is about 14516.2692865626. The cubic root of 210722074 is about 595.0726780793.

Adding to 210722074 its reverse (470227012), we get a palindrome (680949086).

The spelling of 210722074 in words is "two hundred ten million, seven hundred twenty-two thousand, seventy-four".