1142939900 has 18 divisors (see below), whose sum is σ = 2480179800. Its totient is φ = 457175920.

The previous prime is 1142939891. The next prime is 1142939911. The reversal of 1142939900 is 99392411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5714600 + ... + 5714799.

Almost surely, 2^1142939900 is an apocalyptic number.

1142939900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142939900 is an abundant number, since it is smaller than the sum of its proper divisors (1337239900).

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

1142939900 is a wasteful number, since it uses less digits than its factorization.

1142939900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429413 (or 11429406 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1142939900 is about 33807.3941616327. The cubic root of 1142939900 is about 1045.5411526808.

The spelling of 1142939900 in words is "one billion, one hundred forty-two million, nine hundred thirty-nine thousand, nine hundred".