1143846540 has 36 divisors (see below), whose sum is σ = 3469668384. Its totient is φ = 305025696.

The previous prime is 1143846461. The next prime is 1143846541. The reversal of 1143846540 is 456483411.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1143846495 and 1143846504.

It is not an unprimeable number, because it can be changed into a prime (1143846541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3177172 + ... + 3177531.

Almost surely, 2^1143846540 is an apocalyptic number.

1143846540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143846540 is an abundant number, since it is smaller than the sum of its proper divisors (2325821844).

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

1143846540 is a wasteful number, since it uses less digits than its factorization.

1143846540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6354718 (or 6354713 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1143846540 is about 33820.8004044848. The cubic root of 1143846540 is about 1045.8175390104.

The spelling of 1143846540 in words is "one billion, one hundred forty-three million, eight hundred forty-six thousand, five hundred forty".