2143481474 has 32 divisors (see below), whose sum is σ = 3300454080. Its totient is φ = 1043827200.

The previous prime is 2143481441. The next prime is 2143481477. The reversal of 2143481474 is 4741843412.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2143481477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5240582 + ... + 5240990.

It is an arithmetic number, because the mean of its divisors is an integer number (103139190).

Almost surely, 2^2143481474 is an apocalyptic number.

2143481474 is a deficient number, since it is larger than the sum of its proper divisors (1156972606).

2143481474 is a wasteful number, since it uses less digits than its factorization.

2143481474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866.

The product of its digits is 86016, while the sum is 38.

The square root of 2143481474 is about 46297.7480445864. The cubic root of 2143481474 is about 1289.3571850928.

The spelling of 2143481474 in words is "two billion, one hundred forty-three million, four hundred eighty-one thousand, four hundred seventy-four".