8274434644 has 48 divisors (see below), whose sum is σ = 17313988608. Its totient is φ = 3383047008.

The previous prime is 8274434629. The next prime is 8274434687. The reversal of 8274434644 is 4464344728.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 8274434594 and 8274434603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229879 + ... + 263425.

It is an arithmetic number, because the mean of its divisors is an integer number (360708096).

Almost surely, 2^8274434644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8274434644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8656994304).

8274434644 is an abundant number, since it is smaller than the sum of its proper divisors (9039553964).

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

8274434644 is a wasteful number, since it uses less digits than its factorization.

8274434644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33964 (or 33962 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 46.

The square root of 8274434644 is about 90963.9194626089. The cubic root of 8274434644 is about 2022.6129180534.

The spelling of 8274434644 in words is "eight billion, two hundred seventy-four million, four hundred thirty-four thousand, six hundred forty-four".