210040523402 has 24 divisors (see below), whose sum is σ = 335774407584. Its totient is φ = 98520553152.

The previous prime is 210040523393. The next prime is 210040523509. The reversal of 210040523402 is 204325040012.

It is a happy number.

It is a super-2 number, since 2×210040523402² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414398 + ... + 769289.

It is an arithmetic number, because the mean of its divisors is an integer number (13990600316).

Almost surely, 2^210040523402 is an apocalyptic number.

210040523402 is a deficient number, since it is larger than the sum of its proper divisors (125733884182).

210040523402 is a wasteful number, since it uses less digits than its factorization.

210040523402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184030 (or 1184013 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 210040523402 its reverse (204325040012), we get a palindrome (414365563414).

The spelling of 210040523402 in words is "two hundred ten billion, forty million, five hundred twenty-three thousand, four hundred two".