4394505390 has 32 divisors (see below), whose sum is σ = 11505614976. Its totient is φ = 1065334560.

The previous prime is 4394505371. The next prime is 4394505407. The reversal of 4394505390 is 935054934.

It is a happy number.

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, 6658012 + ... + 6658671.

It is an arithmetic number, because the mean of its divisors is an integer number (359550468).

Almost surely, 2^4394505390 is an apocalyptic number.

4394505390 is an abundant number, since it is smaller than the sum of its proper divisors (7111109586).

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

4394505390 is a wasteful number, since it uses less digits than its factorization.

4394505390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13316704.

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 4394505390 is about 66291.0656876174. The cubic root of 4394505390 is about 1637.9601584618.

The spelling of 4394505390 in words is "four billion, three hundred ninety-four million, five hundred five thousand, three hundred ninety".