202021013400 has 96 divisors (see below), whose sum is σ = 626333461200. Its totient is φ = 53866393600.

The previous prime is 202021013387. The next prime is 202021013401. The reversal of 202021013400 is 4310120202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202021013400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021013401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10555840 + ... + 10574960.

Almost surely, 2^202021013400 is an apocalyptic number.

202021013400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202021013400 is an abundant number, since it is smaller than the sum of its proper divisors (424312447800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202021013400 is a wasteful number, since it uses less digits than its factorization.

202021013400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36749 (or 36740 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 202021013400 its reverse (4310120202), we get a palindrome (206331133602).

The spelling of 202021013400 in words is "two hundred two billion, twenty-one million, thirteen thousand, four hundred".