4494091398 has 8 divisors (see below), whose sum is σ = 8988182808. Its totient is φ = 1498030464.

The previous prime is 4494091391. The next prime is 4494091429. The reversal of 4494091398 is 8931904944.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

4494091398 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 4494091398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4494091391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374507611 + ... + 374507622.

It is an arithmetic number, because the mean of its divisors is an integer number (1123522851).

Almost surely, 2^4494091398 is an apocalyptic number.

4494091398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4494091398 is a wasteful number, since it uses less digits than its factorization.

4494091398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749015238.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 4494091398 is about 67037.9847399965. The cubic root of 4494091398 is about 1650.2407237397.

The spelling of 4494091398 in words is "four billion, four hundred ninety-four million, ninety-one thousand, three hundred ninety-eight".