427720194 has 24 divisors (see below), whose sum is σ = 1010975472. Its totient is φ = 129612120.

The previous prime is 427720193. The next prime is 427720201. The reversal of 427720194 is 491027724.

It is not an unprimeable number, because it can be changed into a prime (427720193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1079904 + ... + 1080299.

It is an arithmetic number, because the mean of its divisors is an integer number (42123978).

Almost surely, 2^427720194 is an apocalyptic number.

427720194 is an abundant number, since it is smaller than the sum of its proper divisors (583255278).

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

427720194 is a wasteful number, since it uses less digits than its factorization.

427720194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160222 (or 2160219 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 427720194 is about 20681.3972932198. The cubic root of 427720194 is about 753.4479432922.

The spelling of 427720194 in words is "four hundred twenty-seven million, seven hundred twenty thousand, one hundred ninety-four".