284274140 has 12 divisors (see below), whose sum is σ = 596975736. Its totient is φ = 113709648.

The previous prime is 284274103. The next prime is 284274149. The reversal of 284274140 is 41472482.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 284274097 and 284274106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284274149) 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, 7106834 + ... + 7106873.

It is an arithmetic number, because the mean of its divisors is an integer number (49747978).

Almost surely, 2^284274140 is an apocalyptic number.

284274140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284274140 is an abundant number, since it is smaller than the sum of its proper divisors (312701596).

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

284274140 is a wasteful number, since it uses less digits than its factorization.

284274140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14213716 (or 14213714 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 284274140 is about 16860.4311925882. The cubic root of 284274140 is about 657.5252748022.

The spelling of 284274140 in words is "two hundred eighty-four million, two hundred seventy-four thousand, one hundred forty".