84274340 has 12 divisors (see below), whose sum is σ = 176976156. Its totient is φ = 33709728.

The previous prime is 84274327. The next prime is 84274343. The reversal of 84274340 is 4347248.

It can be written as a sum of positive squares in 2 ways, for example, as 8514724 + 75759616 = 2918^2 + 8704^2 .

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 = 84274297 and 84274306.

It is not an unprimeable number, because it can be changed into a prime (84274343) 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, 2106839 + ... + 2106878.

It is an arithmetic number, because the mean of its divisors is an integer number (14748013).

Almost surely, 2^84274340 is an apocalyptic number.

It is an amenable number.

84274340 is an abundant number, since it is smaller than the sum of its proper divisors (92701816).

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

84274340 is a wasteful number, since it uses less digits than its factorization.

84274340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213726 (or 4213724 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 84274340 is about 9180.1056638799. The cubic root of 84274340 is about 438.4281725839.

The spelling of 84274340 in words is "eighty-four million, two hundred seventy-four thousand, three hundred forty".