15400310240 has 96 divisors (see below), whose sum is σ = 41676042240. Its totient is φ = 5268017664.

The previous prime is 15400310221. The next prime is 15400310267. The reversal of 15400310240 is 4201300451.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480641 + ... + 511679.

It is an arithmetic number, because the mean of its divisors is an integer number (434125440).

Almost surely, 2^15400310240 is an apocalyptic number.

15400310240 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 15400310240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20838021120).

15400310240 is an abundant number, since it is smaller than the sum of its proper divisors (26275732000).

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

15400310240 is a wasteful number, since it uses less digits than its factorization.

15400310240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31504 (or 31496 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 15400310240 its reverse (4201300451), we get a palindrome (19601610691).

The spelling of 15400310240 in words is "fifteen billion, four hundred million, three hundred ten thousand, two hundred forty".