15401426340 has 96 divisors (see below), whose sum is σ = 43684945920. Its totient is φ = 4053961600.

The previous prime is 15401426323. The next prime is 15401426357. The reversal of 15401426340 is 4362410451.

It is an interprime number because it is at equal distance from previous prime (15401426323) and next prime (15401426357).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15401426298 and 15401426307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1496131 + ... + 1506389.

It is an arithmetic number, because the mean of its divisors is an integer number (455051520).

Almost surely, 2^15401426340 is an apocalyptic number.

15401426340 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 15401426340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21842472960).

15401426340 is an abundant number, since it is smaller than the sum of its proper divisors (28283519580).

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

15401426340 is a wasteful number, since it uses less digits than its factorization.

15401426340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10593 (or 10591 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 15401426340 its reverse (4362410451), we get a palindrome (19763836791).

The spelling of 15401426340 in words is "fifteen billion, four hundred one million, four hundred twenty-six thousand, three hundred forty".