1542642628 has 48 divisors (see below), whose sum is σ = 2944045440. Its totient is φ = 704318976.

The previous prime is 1542642599. The next prime is 1542642641. The reversal of 1542642628 is 8262462451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1224663 + ... + 1225921.

It is an arithmetic number, because the mean of its divisors is an integer number (61334280).

Almost surely, 2^1542642628 is an apocalyptic number.

It is an amenable number.

1542642628 is a deficient number, since it is larger than the sum of its proper divisors (1401402812).

1542642628 is a wasteful number, since it uses less digits than its factorization.

1542642628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804 (or 1802 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 1542642628 is about 39276.4895070830. The cubic root of 1542642628 is about 1155.4605156234.

The spelling of 1542642628 in words is "one billion, five hundred forty-two million, six hundred forty-two thousand, six hundred twenty-eight".