4394774520 has 96 divisors (see below), whose sum is σ = 14743797120. Its totient is φ = 1134132480.

The previous prime is 4394774509. The next prime is 4394774561. The reversal of 4394774520 is 254774934.

4394774520 is a `hidden beast` number, since 43 + 94 + 77 + 452 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185739 + ... + 208058.

It is an arithmetic number, because the mean of its divisors is an integer number (153581220).

Almost surely, 2^4394774520 is an apocalyptic number.

4394774520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4394774520 is an abundant number, since it is smaller than the sum of its proper divisors (10349022600).

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

4394774520 is a wasteful number, since it uses less digits than its factorization.

4394774520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393845 (or 393838 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 4394774520 is about 66293.0955680906. The cubic root of 4394774520 is about 1637.9935953092.

The spelling of 4394774520 in words is "four billion, three hundred ninety-four million, seven hundred seventy-four thousand, five hundred twenty".