427066840 has 32 divisors (see below), whose sum is σ = 970238880. Its totient is φ = 169166592.

The previous prime is 427066817. The next prime is 427066867. The reversal of 427066840 is 48660724.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 427066840.

It is a congruent number.

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, 47709 + ... + 55948.

It is an arithmetic number, because the mean of its divisors is an integer number (30319965).

Almost surely, 2^427066840 is an apocalyptic number.

427066840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427066840 is an abundant number, since it is smaller than the sum of its proper divisors (543172040).

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

427066840 is a wasteful number, since it uses less digits than its factorization.

427066840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103771 (or 103767 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 427066840 is about 20665.5955636415. The cubic root of 427066840 is about 753.0641105138.

The spelling of 427066840 in words is "four hundred twenty-seven million, sixty-six thousand, eight hundred forty".