1542042444 has 24 divisors (see below), whose sum is σ = 3599367408. Its totient is φ = 513832960.

The previous prime is 1542042421. The next prime is 1542042449. The reversal of 1542042444 is 4442402451.

It is not an unprimeable number, because it can be changed into a prime (1542042449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15364 + ... + 57620.

It is an arithmetic number, because the mean of its divisors is an integer number (149973642).

Almost surely, 2^1542042444 is an apocalyptic number.

It is an amenable number.

1542042444 is an abundant number, since it is smaller than the sum of its proper divisors (2057324964).

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

1542042444 is a wasteful number, since it uses less digits than its factorization.

1542042444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45305 (or 45303 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 1542042444 is about 39268.8482642412. The cubic root of 1542042444 is about 1155.3106474994.

Adding to 1542042444 its reverse (4442402451), we get a palindrome (5984444895).

The spelling of 1542042444 in words is "one billion, five hundred forty-two million, forty-two thousand, four hundred forty-four".