1542543040 has 28 divisors (see below), whose sum is σ = 3673181376. Its totient is φ = 617017088.

The previous prime is 1542543017. The next prime is 1542543097. The reversal of 1542543040 is 403452451.

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, 2409904 + ... + 2410543.

Almost surely, 2^1542543040 is an apocalyptic number.

1542543040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542543040 is an abundant number, since it is smaller than the sum of its proper divisors (2130638336).

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

1542543040 is an equidigital number, since it uses as much as digits as its factorization.

1542543040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820464 (or 4820454 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1542543040 is about 39275.2217052940. The cubic root of 1542543040 is about 1155.4356508285.

Adding to 1542543040 its reverse (403452451), we get a palindrome (1945995491).

The spelling of 1542543040 in words is "one billion, five hundred forty-two million, five hundred forty-three thousand, forty".