400201202324 has 108 divisors (see below), whose sum is σ = 917803216512. Its totient is φ = 150831122400.

The previous prime is 400201202251. The next prime is 400201202329. The reversal of 400201202324 is 423202102004.

It is a super-2 number, since 2×400201202324² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400201202296 and 400201202305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400201202329) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 163546469 + ... + 163548915.

Almost surely, 2^400201202324 is an apocalyptic number.

400201202324 is a gapful number since it is divisible by the number (44) 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 400201202324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458901608256).

400201202324 is an abundant number, since it is smaller than the sum of its proper divisors (517602014188).

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

400201202324 is a wasteful number, since it uses less digits than its factorization.

400201202324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954 (or 2498 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 400201202324 its reverse (423202102004), we get a palindrome (823403304328).

The spelling of 400201202324 in words is "four hundred billion, two hundred one million, two hundred two thousand, three hundred twenty-four".