1142849664 has 96 divisors (see below), whose sum is σ = 3587678640. Its totient is φ = 346314240.

The previous prime is 1142849651. The next prime is 1142849681. The reversal of 1142849664 is 4669482411.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1142849664² = 2612210709009825792, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32422 + ... + 57765.

Almost surely, 2^1142849664 is an apocalyptic number.

It is an amenable number.

1142849664 is an abundant number, since it is smaller than the sum of its proper divisors (2444828976).

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

1142849664 is a wasteful number, since it uses less digits than its factorization.

1142849664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90218 (or 90203 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 1142849664 is about 33806.0595751708. The cubic root of 1142849664 is about 1045.5136365257.

The spelling of 1142849664 in words is "one billion, one hundred forty-two million, eight hundred forty-nine thousand, six hundred sixty-four".