1143340974 has 32 divisors (see below), whose sum is σ = 2576551680. Its totient is φ = 375744600.

The previous prime is 1143340969. The next prime is 1143340993. The reversal of 1143340974 is 4790433411.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 145272 + ... + 152939.

It is an arithmetic number, because the mean of its divisors is an integer number (80517240).

Almost surely, 2^1143340974 is an apocalyptic number.

1143340974 is an abundant number, since it is smaller than the sum of its proper divisors (1433210706).

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

1143340974 is a wasteful number, since it uses less digits than its factorization.

1143340974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298293 (or 298287 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1143340974 is about 33813.3253910348. The cubic root of 1143340974 is about 1045.6634368391.

The spelling of 1143340974 in words is "one billion, one hundred forty-three million, three hundred forty thousand, nine hundred seventy-four".