2102440402 has 8 divisors (see below), whose sum is σ = 3319642800. Its totient is φ = 995892804.

The previous prime is 2102440399. The next prime is 2102440441. The reversal of 2102440402 is 2040442012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2102440402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27663652 + ... + 27663727.

It is an arithmetic number, because the mean of its divisors is an integer number (414955350).

Almost surely, 2^2102440402 is an apocalyptic number.

2102440402 is a deficient number, since it is larger than the sum of its proper divisors (1217202398).

2102440402 is a wasteful number, since it uses less digits than its factorization.

2102440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55327400.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2102440402 is about 45852.3761870636. The cubic root of 2102440402 is about 1281.0750250145.

Adding to 2102440402 its reverse (2040442012), we get a palindrome (4142882414).

The spelling of 2102440402 in words is "two billion, one hundred two million, four hundred forty thousand, four hundred two".