427907028 has 12 divisors (see below), whose sum is σ = 998449760. Its totient is φ = 142635672.

The previous prime is 427907027. The next prime is 427907057. The reversal of 427907028 is 820709724.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×427907028² = 366208849223585568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427907027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17829448 + ... + 17829471.

Almost surely, 2^427907028 is an apocalyptic number.

It is an amenable number.

427907028 is an abundant number, since it is smaller than the sum of its proper divisors (570542732).

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

427907028 is a wasteful number, since it uses less digits than its factorization.

427907028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35658926 (or 35658924 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 427907028 is about 20685.9137579175. The cubic root of 427907028 is about 753.5576327600.

The spelling of 427907028 in words is "four hundred twenty-seven million, nine hundred seven thousand, twenty-eight".