202114640 has 80 divisors (see below), whose sum is σ = 578379648. Its totient is φ = 63963648.

The previous prime is 202114613. The next prime is 202114643. The reversal of 202114640 is 46411202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202114643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6602 + ... + 21161.

Almost surely, 2^202114640 is an apocalyptic number.

202114640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202114640 is an abundant number, since it is smaller than the sum of its proper divisors (376265008).

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

202114640 is a wasteful number, since it uses less digits than its factorization.

202114640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27796 (or 27790 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 202114640 is about 14216.7028526308. The cubic root of 202114640 is about 586.8574075605.

Adding to 202114640 its reverse (46411202), we get a palindrome (248525842).

It can be divided in two parts, 2021 and 14640, that added together give a palindrome (16661).

The spelling of 202114640 in words is "two hundred two million, one hundred fourteen thousand, six hundred forty".