1542489862 has 4 divisors (see below), whose sum is σ = 2313734796. Its totient is φ = 771244930.

The previous prime is 1542489857. The next prime is 1542489887. The reversal of 1542489862 is 2689842451.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385622464 + ... + 385622467.

It is an arithmetic number, because the mean of its divisors is an integer number (578433699).

Almost surely, 2^1542489862 is an apocalyptic number.

1542489862 is a deficient number, since it is larger than the sum of its proper divisors (771244934).

1542489862 is an equidigital number, since it uses as much as digits as its factorization.

1542489862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771244933.

The product of its digits is 1105920, while the sum is 49.

The square root of 1542489862 is about 39274.5447077366. The cubic root of 1542489862 is about 1155.4223730870.

The spelling of 1542489862 in words is "one billion, five hundred forty-two million, four hundred eighty-nine thousand, eight hundred sixty-two".