223861444 has 9 divisors (see below), whose sum is σ = 391809901. Its totient is φ = 111915760.

The previous prime is 223861427. The next prime is 223861459. The reversal of 223861444 is 444168322.

The square root of 223861444 is 14962.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 194267844 + 29593600 = 13938^2 + 5440^2 .

It is a super-2 number, since 2×223861444² = 100227892219530272, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 26184 + ... + 33664.

Almost surely, 2^223861444 is an apocalyptic number.

223861444 is the 14962-nd square number.

It is an amenable number.

223861444 is a deficient number, since it is larger than the sum of its proper divisors (167948457).

223861444 is an frugal number, since it uses more digits than its factorization.

223861444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14966 (or 7483 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The cubic root of 223861444 is about 607.1925490177.

Multiplying 223861444 by its product of digits (36864), we get a square (8252428271616 = 2872704²).

The spelling of 223861444 in words is "two hundred twenty-three million, eight hundred sixty-one thousand, four hundred forty-four".