2045402 has 4 divisors (see below), whose sum is σ = 3068106. Its totient is φ = 1022700.

The previous prime is 2045377. The next prime is 2045437.

2045402 is nontrivially palindromic in base 10.

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., 1125721 + 919681 = 1061^2 + 959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511349 + ... + 511352.

2^2045402 is an apocalyptic number.

2045402 is a deficient number, since it is larger than the sum of its proper divisors (1022704).

2045402 is a wasteful number, since it uses less digits than its factorization.

2045402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022703.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2045402 is about 1430.1755137045. The cubic root of 2045402 is about 126.9383626336.

The spelling of 2045402 in words is "two million, forty-five thousand, four hundred two".