427412556 has 72 divisors (see below), whose sum is σ = 1127861280. Its totient is φ = 136303104.

The previous prime is 427412509. The next prime is 427412603. The reversal of 427412556 is 655214724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (427412509) and next prime (427412603).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 427412556.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116161 + ... + 119783.

It is an arithmetic number, because the mean of its divisors is an integer number (15664740).

Almost surely, 2^427412556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427412556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563930640).

427412556 is an abundant number, since it is smaller than the sum of its proper divisors (700448724).

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

427412556 is a wasteful number, since it uses less digits than its factorization.

427412556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775 (or 3770 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 427412556 is about 20673.9584018156. The cubic root of 427412556 is about 753.2672606751.

The spelling of 427412556 in words is "four hundred twenty-seven million, four hundred twelve thousand, five hundred fifty-six".