15542040304 has 60 divisors (see below), whose sum is σ = 35186539584. Its totient is φ = 6630930432.

The previous prime is 15542040281. The next prime is 15542040307. The reversal of 15542040304 is 40304024551.

It is a super-2 number, since 2×15542040304² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15542040307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130384 + ... + 219280.

Almost surely, 2^15542040304 is an apocalyptic number.

15542040304 is a gapful number since it is divisible by the number (14) 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 15542040304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17593269792).

15542040304 is an abundant number, since it is smaller than the sum of its proper divisors (19644499280).

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

15542040304 is a wasteful number, since it uses less digits than its factorization.

15542040304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89142 (or 89129 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 15542040304 its reverse (40304024551), we get a palindrome (55846064855).

The spelling of 15542040304 in words is "fifteen billion, five hundred forty-two million, forty thousand, three hundred four".