1542980840 has 32 divisors (see below), whose sum is σ = 3474453960. Its totient is φ = 616704000.

The previous prime is 1542980827. The next prime is 1542980851. The reversal of 1542980840 is 480892451.

It can be written as a sum of positive squares in 4 ways, for example, as 1405200196 + 137780644 = 37486^2 + 11738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38240 + ... + 67440.

Almost surely, 2^1542980840 is an apocalyptic number.

1542980840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542980840 is an abundant number, since it is smaller than the sum of its proper divisors (1931473120).

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

1542980840 is a wasteful number, since it uses less digits than its factorization.

1542980840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30533 (or 30529 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1542980840 is about 39280.7947984763. The cubic root of 1542980840 is about 1155.5449512642.

It can be divided in two parts, 15429 and 80840, that added together give a palindrome (96269).

The spelling of 1542980840 in words is "one billion, five hundred forty-two million, nine hundred eighty thousand, eight hundred forty".