4390945387 has 16 divisors (see below), whose sum is σ = 4694088960. Its totient is φ = 4097392992.

The previous prime is 4390945381. The next prime is 4390945393. The reversal of 4390945387 is 7835490934.

It is an interprime number because it is at equal distance from previous prime (4390945381) and next prime (4390945393).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4390945387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4390945381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005613 + ... + 1009969.

It is an arithmetic number, because the mean of its divisors is an integer number (293380560).

Almost surely, 2^4390945387 is an apocalyptic number.

4390945387 is a deficient number, since it is larger than the sum of its proper divisors (303143573).

4390945387 is a wasteful number, since it uses less digits than its factorization.

4390945387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 4390945387 is about 66264.2089441955. The cubic root of 4390945387 is about 1637.5177333666.

The spelling of 4390945387 in words is "four billion, three hundred ninety million, nine hundred forty-five thousand, three hundred eighty-seven".