4390521366 has 64 divisors (see below), whose sum is σ = 10954944000. Its totient is φ = 1139650560.

The previous prime is 4390521329. The next prime is 4390521391. The reversal of 4390521366 is 6631250934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1268310 + ... + 1271766.

It is an arithmetic number, because the mean of its divisors is an integer number (171171000).

Almost surely, 2^4390521366 is an apocalyptic number.

4390521366 is an abundant number, since it is smaller than the sum of its proper divisors (6564422634).

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

4390521366 is a wasteful number, since it uses less digits than its factorization.

4390521366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 4390521366 is about 66261.0093946659. The cubic root of 4390521366 is about 1637.4650215398.

The spelling of 4390521366 in words is "four billion, three hundred ninety million, five hundred twenty-one thousand, three hundred sixty-six".