1143354040 has 32 divisors (see below), whose sum is σ = 2723874480. Its totient is φ = 430438912.

The previous prime is 1143354019. The next prime is 1143354053. The reversal of 1143354040 is 404533411.

It is a junction number, because it is equal to n+sod(n) for n = 1143353996 and 1143354014.

It is a congruent number.

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, 840022 + ... + 841381.

Almost surely, 2^1143354040 is an apocalyptic number.

1143354040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143354040 is an abundant number, since it is smaller than the sum of its proper divisors (1580520440).

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

1143354040 is a wasteful number, since it uses less digits than its factorization.

1143354040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681431 (or 1681427 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1143354040 is about 33813.5185983358. The cubic root of 1143354040 is about 1045.6674200738.

Adding to 1143354040 its reverse (404533411), we get a palindrome (1547887451).

The spelling of 1143354040 in words is "one billion, one hundred forty-three million, three hundred fifty-four thousand, forty".