427801236 has 24 divisors (see below), whose sum is σ = 1000703424. Its totient is φ = 142243200.

The previous prime is 427801217. The next prime is 427801237. The reversal of 427801236 is 632108724.

It is a junction number, because it is equal to n+sod(n) for n = 427801197 and 427801206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427801237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39640 + ... + 49263.

It is an arithmetic number, because the mean of its divisors is an integer number (41695976).

Almost surely, 2^427801236 is an apocalyptic number.

It is an amenable number.

427801236 is an abundant number, since it is smaller than the sum of its proper divisors (572902188).

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

427801236 is a wasteful number, since it uses less digits than its factorization.

427801236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89311 (or 89309 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 427801236 is about 20683.3564974353. The cubic root of 427801236 is about 753.4955266368.

The spelling of 427801236 in words is "four hundred twenty-seven million, eight hundred one thousand, two hundred thirty-six".