402201400 has 48 divisors (see below), whose sum is σ = 946423800. Its totient is φ = 158935680.

The previous prime is 402201383. The next prime is 402201427. The reversal of 402201400 is 4102204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4486 + ... + 28714.

Almost surely, 2^402201400 is an apocalyptic number.

402201400 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 402201400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473211900).

402201400 is an abundant number, since it is smaller than the sum of its proper divisors (544222400).

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

402201400 is a wasteful number, since it uses less digits than its factorization.

402201400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24328 (or 24319 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 402201400 is about 20054.9594863714. The cubic root of 402201400 is about 738.1554987980.

Adding to 402201400 its reverse (4102204), we get a palindrome (406303604).

The spelling of 402201400 in words is "four hundred two million, two hundred one thousand, four hundred".