427431884 has 24 divisors (see below), whose sum is σ = 864008208. Its totient is φ = 182858240.

The previous prime is 427431883. The next prime is 427431887. The reversal of 427431884 is 488134724.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (427431883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284969 + ... + 286464.

It is an arithmetic number, because the mean of its divisors is an integer number (36000342).

Almost surely, 2^427431884 is an apocalyptic number.

427431884 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

427431884 is an abundant number, since it is smaller than the sum of its proper divisors (436576324).

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

427431884 is a wasteful number, since it uses less digits than its factorization.

427431884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571465 (or 571463 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 427431884 is about 20674.4258445065. The cubic root of 427431884 is about 753.2786149900.

The spelling of 427431884 in words is "four hundred twenty-seven million, four hundred thirty-one thousand, eight hundred eighty-four".