1542974208 has 72 divisors (see below), whose sum is σ = 4121954928. Its totient is φ = 512397312.

The previous prime is 1542974189. The next prime is 1542974219. The reversal of 1542974208 is 8024792451.

It is a self number, because there is not a number n which added to its sum of digits gives 1542974208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209110 + ... + 216362.

It is an arithmetic number, because the mean of its divisors is an integer number (57249374).

Almost surely, 2^1542974208 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 1542974208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2060977464).

1542974208 is an abundant number, since it is smaller than the sum of its proper divisors (2578980720).

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

1542974208 is an equidigital number, since it uses as much as digits as its factorization.

1542974208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7549 (or 7535 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1542974208 is about 39280.7103805417. The cubic root of 1542974208 is about 1155.5432956841.

The spelling of 1542974208 in words is "one billion, five hundred forty-two million, nine hundred seventy-four thousand, two hundred eight".