427013778 has 16 divisors (see below), whose sum is σ = 881577216. Its totient is φ = 137746320.

The previous prime is 427013749. The next prime is 427013801. The reversal of 427013778 is 877310724.

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, 1147701 + ... + 1148072.

It is an arithmetic number, because the mean of its divisors is an integer number (55098576).

Almost surely, 2^427013778 is an apocalyptic number.

427013778 is an abundant number, since it is smaller than the sum of its proper divisors (454563438).

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

427013778 is a wasteful number, since it uses less digits than its factorization.

427013778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295809.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 427013778 is about 20664.3116991590. The cubic root of 427013778 is about 753.0329204367.

The spelling of 427013778 in words is "four hundred twenty-seven million, thirteen thousand, seven hundred seventy-eight".