1542543492 has 48 divisors (see below), whose sum is σ = 4213786752. Its totient is φ = 429976320.

The previous prime is 1542543487. The next prime is 1542543503. The reversal of 1542543492 is 2943452451.

It is a self number, because there is not a number n which added to its sum of digits gives 1542543492.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220503 + ... + 227390.

It is an arithmetic number, because the mean of its divisors is an integer number (87787224).

Almost surely, 2^1542543492 is an apocalyptic number.

1542543492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1542543492 is an abundant number, since it is smaller than the sum of its proper divisors (2671243260).

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

1542543492 is a wasteful number, since it uses less digits than its factorization.

1542543492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447948 (or 447946 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 1542543492 is about 39275.2274595578. The cubic root of 1542543492 is about 1155.4357636847.

The spelling of 1542543492 in words is "one billion, five hundred forty-two million, five hundred forty-three thousand, four hundred ninety-two".