469143881 has 4 divisors (see below), whose sum is σ = 472725264. Its totient is φ = 465562500.

The previous prime is 469143841. The next prime is 469143887. The reversal of 469143881 is 188341964.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 469143881 - 2¹⁸ = 468881737 is a prime.

It is a super-2 number, since 2×469143881² = 440191962159484322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (469143887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1790495 + ... + 1790756.

It is an arithmetic number, because the mean of its divisors is an integer number (118181316).

Almost surely, 2^469143881 is an apocalyptic number.

It is an amenable number.

469143881 is a deficient number, since it is larger than the sum of its proper divisors (3581383).

469143881 is a wasteful number, since it uses less digits than its factorization.

469143881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581382.

The product of its digits is 165888, while the sum is 44.

The square root of 469143881 is about 21659.7294766117. The cubic root of 469143881 is about 777.0256442140.

The spelling of 469143881 in words is "four hundred sixty-nine million, one hundred forty-three thousand, eight hundred eighty-one".