3924491394 has 16 divisors (see below), whose sum is σ = 7850256480. Its totient is φ = 1307951520.

The previous prime is 3924491369. The next prime is 3924491411. The reversal of 3924491394 is 4931944293.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10372 + ... + 89199.

It is an arithmetic number, because the mean of its divisors is an integer number (490641030).

Almost surely, 2^3924491394 is an apocalyptic number.

3924491394 is an abundant number, since it is smaller than the sum of its proper divisors (3925765086).

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

3924491394 is a wasteful number, since it uses less digits than its factorization.

3924491394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106145.

The product of its digits is 839808, while the sum is 48.

The square root of 3924491394 is about 62645.7611814239. The cubic root of 3924491394 is about 1577.3489959880.

The spelling of 3924491394 in words is "three billion, nine hundred twenty-four million, four hundred ninety-one thousand, three hundred ninety-four".