2039402 has 4 divisors (see below), whose sum is σ = 3059106. Its totient is φ = 1019700.

The previous prime is 2039383. The next prime is 2039407. The reversal of 2039402 is 2049302.

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., 1413721 + 625681 = 1189^2 + 791^2 .

It is not an unprimeable number, because it can be changed into a prime (2039407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509849 + ... + 509852.

2^2039402 is an apocalyptic number.

2039402 is a deficient number, since it is larger than the sum of its proper divisors (1019704).

2039402 is a wasteful number, since it uses less digits than its factorization.

2039402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019703.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2039402 is about 1428.0763284923. The cubic root of 2039402 is about 126.8141203712.

The spelling of 2039402 in words is "two million, thirty-nine thousand, four hundred two".