427739136 has 96 divisors (see below), whose sum is σ = 1244224800. Its totient is φ = 129597440.

The previous prime is 427739099. The next prime is 427739149. The reversal of 427739136 is 631937724.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64420 + ... + 70748.

It is an arithmetic number, because the mean of its divisors is an integer number (12960675).

Almost surely, 2^427739136 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 427739136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622112400).

427739136 is an abundant number, since it is smaller than the sum of its proper divisors (816485664).

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

427739136 is a wasteful number, since it uses less digits than its factorization.

427739136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6365 (or 6345 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 427739136 is about 20681.8552359308. The cubic root of 427739136 is about 753.4590655169.

The spelling of 427739136 in words is "four hundred twenty-seven million, seven hundred thirty-nine thousand, one hundred thirty-six".