202042400 has 144 divisors (see below), whose sum is σ = 570588480. Its totient is φ = 68428800.

The previous prime is 202042397. The next prime is 202042411. The reversal of 202042400 is 4240202.

It is a happy number.

It is a super-2 number, since 2×202042400² = 81642262795520000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610235 + ... + 610565.

It is an arithmetic number, because the mean of its divisors is an integer number (3962420).

Almost surely, 2^202042400 is an apocalyptic number.

202042400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202042400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285294240).

202042400 is an abundant number, since it is smaller than the sum of its proper divisors (368546080).

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

202042400 is a wasteful number, since it uses less digits than its factorization.

202042400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 202042400 is about 14214.1619520815. The cubic root of 202042400 is about 586.7874808578.

Adding to 202042400 its reverse (4240202), we get a palindrome (206282602).

The spelling of 202042400 in words is "two hundred two million, forty-two thousand, four hundred".