427706190 has 64 divisors (see below), whose sum is σ = 1151092800. Its totient is φ = 113000832.

The previous prime is 427706129. The next prime is 427706203. The reversal of 427706190 is 91607724.

It is a happy number.

It is a super-2 number, since 2×427706190² = 365865169928632200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22164 + ... + 36696.

It is an arithmetic number, because the mean of its divisors is an integer number (17985825).

Almost surely, 2^427706190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427706190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575546400).

427706190 is an abundant number, since it is smaller than the sum of its proper divisors (723386610).

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

427706190 is a wasteful number, since it uses less digits than its factorization.

427706190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14658 (or 14652 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 427706190 is about 20681.0587253167. The cubic root of 427706190 is about 753.4397203151.

The spelling of 427706190 in words is "four hundred twenty-seven million, seven hundred six thousand, one hundred ninety".