427966728 has 64 divisors (see below), whose sum is σ = 1242837120. Its totient is φ = 120268800.

The previous prime is 427966703. The next prime is 427966729. The reversal of 427966728 is 827669724.

It is not an unprimeable number, because it can be changed into a prime (427966729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10633 + ... + 31128.

It is an arithmetic number, because the mean of its divisors is an integer number (19419330).

Almost surely, 2^427966728 is an apocalyptic number.

It is an amenable number.

427966728 is an abundant number, since it is smaller than the sum of its proper divisors (814870392).

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

427966728 is a wasteful number, since it uses less digits than its factorization.

427966728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41838 (or 41834 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The square root of 427966728 is about 20687.3567185370. The cubic root of 427966728 is about 753.5926756515.

The spelling of 427966728 in words is "four hundred twenty-seven million, nine hundred sixty-six thousand, seven hundred twenty-eight".