2152040423400 has 288 divisors, whose sum is σ = 8372886749760. Its totient is φ = 485156459520.

The previous prime is 2152040423399. The next prime is 2152040423503. The reversal of 2152040423400 is 43240402512.

2152040423400 is a `hidden beast` number, since 2 + 1 + 5 + 20 + 404 + 234 + 0 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 250042 + ... + 2089641.

Almost surely, 2^{2152040423400} is an apocalyptic number.

2152040423400 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 2152040423400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4186443374880).

2152040423400 is an abundant number, since it is smaller than the sum of its proper divisors (6220846326360).

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

2152040423400 is a wasteful number, since it uses less digits than its factorization.

2152040423400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339785 (or 2339773 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 2152040423400 its reverse (43240402512), we get a palindrome (2195280825912).

The spelling of 2152040423400 in words is "two trillion, one hundred fifty-two billion, forty million, four hundred twenty-three thousand, four hundred".