1542221896 has 16 divisors (see below), whose sum is σ = 2896439040. Its totient is φ = 769838160.

The previous prime is 1542221867. The next prime is 1542221909. The reversal of 1542221896 is 6981222451.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153940 + ... + 163651.

It is an arithmetic number, because the mean of its divisors is an integer number (181027440).

Almost surely, 2^1542221896 is an apocalyptic number.

It is an amenable number.

1542221896 is a deficient number, since it is larger than the sum of its proper divisors (1354217144).

1542221896 is a wasteful number, since it uses less digits than its factorization.

1542221896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318204 (or 318200 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 1542221896 is about 39271.1331132678. The cubic root of 1542221896 is about 1155.3554613901.

The spelling of 1542221896 in words is "one billion, five hundred forty-two million, two hundred twenty-one thousand, eight hundred ninety-six".