1942543536 has 40 divisors (see below), whose sum is σ = 5100511344. Its totient is φ = 636898560.

The previous prime is 1942543507. The next prime is 1942543541. The reversal of 1942543536 is 6353452491.

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, 328791 + ... + 334646.

Almost surely, 2^1942543536 is an apocalyptic number.

1942543536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1942543536 is an abundant number, since it is smaller than the sum of its proper divisors (3157967808).

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

1942543536 is a wasteful number, since it uses less digits than its factorization.

1942543536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663509 (or 663503 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 1942543536 is about 44074.2956381608. The cubic root of 1942543536 is about 1247.7385320910.

The spelling of 1942543536 in words is "one billion, nine hundred forty-two million, five hundred forty-three thousand, five hundred thirty-six".