1542132880 has 40 divisors (see below), whose sum is σ = 3587716800. Its totient is φ = 616464768.

The previous prime is 1542132871. The next prime is 1542132881. The reversal of 1542132880 is 882312451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1542132881) 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, 145191 + ... + 155449.

It is an arithmetic number, because the mean of its divisors is an integer number (89692920).

Almost surely, 2^1542132880 is an apocalyptic number.

1542132880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542132880 is an abundant number, since it is smaller than the sum of its proper divisors (2045583920).

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

1542132880 is a wasteful number, since it uses less digits than its factorization.

1542132880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12151 (or 12145 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1542132880 is about 39269.9997453527. Note that the first 3 decimals coincide. The cubic root of 1542132880 is about 1155.3332321850. Note that the first 3 decimals are identical.

The spelling of 1542132880 in words is "one billion, five hundred forty-two million, one hundred thirty-two thousand, eight hundred eighty".