2040023402 has 4 divisors (see below), whose sum is σ = 3060035106. Its totient is φ = 1020011700.

The previous prime is 2040023389. The next prime is 2040023413. The reversal of 2040023402 is 2043200402.

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., 1386147361 + 653876041 = 37231^2 + 25571^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510005849 + ... + 510005852.

Almost surely, 2^2040023402 is an apocalyptic number.

2040023402 is a deficient number, since it is larger than the sum of its proper divisors (1020011704).

2040023402 is a wasteful number, since it uses less digits than its factorization.

2040023402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020011703.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2040023402 is about 45166.6182262963. The cubic root of 2040023402 is about 1268.2699907220.

Adding to 2040023402 its reverse (2043200402), we get a palindrome (4083223804).

The spelling of 2040023402 in words is "two billion, forty million, twenty-three thousand, four hundred two".