1406044143 has 64 divisors (see below), whose sum is σ = 2579512320. Its totient is φ = 738533376.

The previous prime is 1406044139. The next prime is 1406044187. The reversal of 1406044143 is 3414406041.

1406044143 is a `hidden beast` number, since 1 + 40 + 604 + 4 + 14 + 3 = 666.

It is not a de Polignac number, because 1406044143 - 2² = 1406044139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406044193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 133071 + ... + 143247.

It is an arithmetic number, because the mean of its divisors is an integer number (40304880).

Almost surely, 2^1406044143 is an apocalyptic number.

1406044143 is a deficient number, since it is larger than the sum of its proper divisors (1173468177).

1406044143 is a wasteful number, since it uses less digits than its factorization.

1406044143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253 (or 10247 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1406044143 is about 37497.2551395432. The cubic root of 1406044143 is about 1120.2965156137.

The spelling of 1406044143 in words is "one billion, four hundred six million, forty-four thousand, one hundred forty-three".