15430540242 has 64 divisors (see below), whose sum is σ = 34703665920. Its totient is φ = 4538333184.

The previous prime is 15430540187. The next prime is 15430540261. The reversal of 15430540242 is 24204503451.

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, 5195734 + ... + 5198702.

It is an arithmetic number, because the mean of its divisors is an integer number (542244780).

Almost surely, 2^15430540242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15430540242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17351832960).

15430540242 is an abundant number, since it is smaller than the sum of its proper divisors (19273125678).

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

15430540242 is a wasteful number, since it uses less digits than its factorization.

15430540242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 15430540242 in words is "fifteen billion, four hundred thirty million, five hundred forty thousand, two hundred forty-two".