1143000240 has 40 divisors (see below), whose sum is σ = 3543301488. Its totient is φ = 304800000.

The previous prime is 1143000227. The next prime is 1143000247. The reversal of 1143000240 is 420003411.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1143000247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2381011 + ... + 2381490.

Almost surely, 2^1143000240 is an apocalyptic number.

1143000240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143000240 is an abundant number, since it is smaller than the sum of its proper divisors (2400301248).

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

1143000240 is a wasteful number, since it uses less digits than its factorization.

1143000240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762517 (or 4762511 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1143000240 is about 33808.2865581798. The cubic root of 1143000240 is about 1045.5595516776.

Adding to 1143000240 its reverse (420003411), we get a palindrome (1563003651).

The spelling of 1143000240 in words is "one billion, one hundred forty-three million, two hundred forty", and thus it is an aban number.