2204402 has 4 divisors (see below), whose sum is σ = 3306606. Its totient is φ = 1102200.

The previous prime is 2204393. The next prime is 2204431. The reversal of 2204402 is 2044022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2044022 = 2 ⋅1022011.

It can be written as a sum of positive squares in only one way, i.e., 1466521 + 737881 = 1211^2 + 859^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551099 + ... + 551102.

2^2204402 is an apocalyptic number.

2204402 is a deficient number, since it is larger than the sum of its proper divisors (1102204).

2204402 is a wasteful number, since it uses less digits than its factorization.

2204402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102203.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2204402 is about 1484.7228697639. The cubic root of 2204402 is about 130.1458324011.

Adding to 2204402 its reverse (2044022), we get a palindrome (4248424).

It can be divided in two parts, 2 and 204402, that multiplied together give a palindrome (408804).

The spelling of 2204402 in words is "two million, two hundred four thousand, four hundred two".