1542213888 has 144 divisors (see below), whose sum is σ = 4575453120. Its totient is φ = 458293248.

The previous prime is 1542213847. The next prime is 1542213889. The reversal of 1542213888 is 8883122451.

It is not an unprimeable number, because it can be changed into a prime (1542213889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244956 + ... + 251172.

It is an arithmetic number, because the mean of its divisors is an integer number (31773980).

Almost surely, 2^1542213888 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 1542213888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2287726560).

1542213888 is an abundant number, since it is smaller than the sum of its proper divisors (3033239232).

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

1542213888 is a wasteful number, since it uses less digits than its factorization.

1542213888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272 (or 6258 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 1542213888 is about 39271.0311552931. The cubic root of 1542213888 is about 1155.3534616557.

The spelling of 1542213888 in words is "one billion, five hundred forty-two million, two hundred thirteen thousand, eight hundred eighty-eight".