15241423440 has 160 divisors (see below), whose sum is σ = 50079758976. Its totient is φ = 3821322240.

The previous prime is 15241423433. The next prime is 15241423441. The reversal of 15241423440 is 4432414251.

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 = 15241423398 and 15241423407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15241423441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7151175 + ... + 7153305.

Almost surely, 2^15241423440 is an apocalyptic number.

15241423440 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 15241423440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25039879488).

15241423440 is an abundant number, since it is smaller than the sum of its proper divisors (34838335536).

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

15241423440 is a wasteful number, since it uses less digits than its factorization.

15241423440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3911 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 15241423440 its reverse (4432414251), we get a palindrome (19673837691).

The spelling of 15241423440 in words is "fifteen billion, two hundred forty-one million, four hundred twenty-three thousand, four hundred forty".