2210402 has 4 divisors (see below), whose sum is σ = 3315606. Its totient is φ = 1105200.

The previous prime is 2210401. The next prime is 2210407. The reversal of 2210402 is 2040122.

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., 2157961 + 52441 = 1469^2 + 229^2 .

It is not an unprimeable number, because it can be changed into a prime (2210401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552599 + ... + 552602.

2^2210402 is an apocalyptic number.

2210402 is a deficient number, since it is larger than the sum of its proper divisors (1105204).

2210402 is a wasteful number, since it uses less digits than its factorization.

2210402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105203.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2210402 is about 1486.7420758154. The cubic root of 2210402 is about 130.2638035629.

Adding to 2210402 its reverse (2040122), we get a palindrome (4250524).

The spelling of 2210402 in words is "two million, two hundred ten thousand, four hundred two".