427445760 has 160 divisors (see below), whose sum is σ = 1561900032. Its totient is φ = 97689600.

The previous prime is 427445749. The next prime is 427445797. The reversal of 427445760 is 67544724.

It is a tau number, because it is divible by the number of its divisors (160).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49785 + ... + 57735.

Almost surely, 2^427445760 is an apocalyptic number.

427445760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427445760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780950016).

427445760 is an abundant number, since it is smaller than the sum of its proper divisors (1134454272).

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

427445760 is an equidigital number, since it uses as much as digits as its factorization.

427445760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984 (or 7968 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 39.

The square root of 427445760 is about 20674.7614254675. The cubic root of 427445760 is about 753.2867662934.

The spelling of 427445760 in words is "four hundred twenty-seven million, four hundred forty-five thousand, seven hundred sixty".