202104201040 has 40 divisors (see below), whose sum is σ = 537019735680. Its totient is φ = 69292868736.

The previous prime is 202104201031. The next prime is 202104201041. The reversal of 202104201040 is 40102401202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×202104201040² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202104201041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180449620 + ... + 180450739.

It is an arithmetic number, because the mean of its divisors is an integer number (13425493392).

Almost surely, 2^202104201040 is an apocalyptic number.

202104201040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202104201040 is an abundant number, since it is smaller than the sum of its proper divisors (334915534640).

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

202104201040 is a wasteful number, since it uses less digits than its factorization.

202104201040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360900379 (or 360900373 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202104201040 its reverse (40102401202), we get a palindrome (242206602242).

The spelling of 202104201040 in words is "two hundred two billion, one hundred four million, two hundred one thousand, forty".