402201453400 has 96 divisors (see below), whose sum is σ = 939988944000. Its totient is φ = 160044318720.

The previous prime is 402201453383. The next prime is 402201453403. The reversal of 402201453400 is 4354102204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402201453403) 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, 42605881 + ... + 42615319.

It is an arithmetic number, because the mean of its divisors is an integer number (9791551500).

Almost surely, 2^402201453400 is an apocalyptic number.

402201453400 is a gapful number since it is divisible by the number (40) 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 402201453400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469994472000).

402201453400 is an abundant number, since it is smaller than the sum of its proper divisors (537787490600).

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

402201453400 is a wasteful number, since it uses less digits than its factorization.

402201453400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10541 (or 10532 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 402201453400 its reverse (4354102204), we get a palindrome (406555555604).

The spelling of 402201453400 in words is "four hundred two billion, two hundred one million, four hundred fifty-three thousand, four hundred".