210053402 has 16 divisors (see below), whose sum is σ = 340163880. Its totient is φ = 96705792.

The previous prime is 210053399. The next prime is 210053407. The reversal of 210053402 is 204350012.

It can be written as a sum of positive squares in 4 ways, for example, as 169234081 + 40819321 = 13009^2 + 6389^2 .

It is not an unprimeable number, because it can be changed into a prime (210053407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758 + ... + 20510.

Almost surely, 2^210053402 is an apocalyptic number.

210053402 is a deficient number, since it is larger than the sum of its proper divisors (130110478).

210053402 is a wasteful number, since it uses less digits than its factorization.

210053402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20177.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 210053402 is about 14493.2191731168. The cubic root of 210053402 is about 594.4425747077.

The spelling of 210053402 in words is "two hundred ten million, fifty-three thousand, four hundred two".