15421410400 has 144 divisors (see below), whose sum is σ = 41217080688. Its totient is φ = 5587712000.

The previous prime is 15421410341. The next prime is 15421410419. The reversal of 15421410400 is 401412451.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2575410 + ... + 2581390.

It is an arithmetic number, because the mean of its divisors is an integer number (286229727).

Almost surely, 2^15421410400 is an apocalyptic number.

15421410400 is a gapful number since it is divisible by the number (10) 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 15421410400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20608540344).

15421410400 is an abundant number, since it is smaller than the sum of its proper divisors (25795670288).

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

15421410400 is a wasteful number, since it uses less digits than its factorization.

15421410400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305 (or 6292 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 15421410400 its reverse (401412451), we get a palindrome (15822822851).

The spelling of 15421410400 in words is "fifteen billion, four hundred twenty-one million, four hundred ten thousand, four hundred".