423884454 has 64 divisors (see below), whose sum is σ = 1004298240. Its totient is φ = 116756640.

The previous prime is 423884431. The next prime is 423884467. The reversal of 423884454 is 454488324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141189 + ... + 144159.

It is an arithmetic number, because the mean of its divisors is an integer number (15692160).

Almost surely, 2^423884454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423884454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502149120).

423884454 is an abundant number, since it is smaller than the sum of its proper divisors (580413786).

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

423884454 is a wasteful number, since it uses less digits than its factorization.

423884454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105.

The product of its digits is 491520, while the sum is 42.

The square root of 423884454 is about 20588.4543858931. The cubic root of 423884454 is about 751.1889019094.

The spelling of 423884454 in words is "four hundred twenty-three million, eight hundred eighty-four thousand, four hundred fifty-four".