2223523402 has 4 divisors (see below), whose sum is σ = 3335285106. Its totient is φ = 1111761700.

The previous prime is 2223523307. The next prime is 2223523403. The reversal of 2223523402 is 2043253222.

It is a happy number.

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., 1621753441 + 601769961 = 40271^2 + 24531^2 .

It is not an unprimeable number, because it can be changed into a prime (2223523403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555880849 + ... + 555880852.

Almost surely, 2^2223523402 is an apocalyptic number.

2223523402 is a deficient number, since it is larger than the sum of its proper divisors (1111761704).

2223523402 is a wasteful number, since it uses less digits than its factorization.

2223523402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111761703.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 2223523402 is about 47154.2511551186. The cubic root of 2223523402 is about 1305.2105280251.

Adding to 2223523402 its reverse (2043253222), we get a palindrome (4266776624).

It can be divided in two parts, 2223 and 523402, that added together give a square (525625 = 725²).

The spelling of 2223523402 in words is "two billion, two hundred twenty-three million, five hundred twenty-three thousand, four hundred two".