704542428 has 96 divisors (see below), whose sum is σ = 1865371200. Its totient is φ = 229920768.

The previous prime is 704542427. The next prime is 704542451. The reversal of 704542428 is 824245407.

704542428 is a `hidden beast` number, since 70 + 4 + 542 + 42 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 704542392 and 704542401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704542427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1141576 + ... + 1142192.

It is an arithmetic number, because the mean of its divisors is an integer number (19430950).

Almost surely, 2^704542428 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 704542428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932685600).

704542428 is an abundant number, since it is smaller than the sum of its proper divisors (1160828772).

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

704542428 is a wasteful number, since it uses less digits than its factorization.

704542428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 704542428 is about 26543.2181168750. The cubic root of 704542428 is about 889.8204527764.

The spelling of 704542428 in words is "seven hundred four million, five hundred forty-two thousand, four hundred twenty-eight".