1542122688 has 112 divisors (see below), whose sum is σ = 4310522240. Its totient is φ = 486570240.

The previous prime is 1542122657. The next prime is 1542122693. The reversal of 1542122688 is 8862212451.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1316343 + ... + 1317513.

Almost surely, 2^1542122688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542122688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2155261120).

1542122688 is an abundant number, since it is smaller than the sum of its proper divisors (2768399552).

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

1542122688 is an equidigital number, since it uses as much as digits as its factorization.

1542122688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1195 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 1542122688 is about 39269.8699768665. The cubic root of 1542122688 is about 1155.3306869693.

The spelling of 1542122688 in words is "one billion, five hundred forty-two million, one hundred twenty-two thousand, six hundred eighty-eight".