4278591492 has 96 divisors (see below), whose sum is σ = 11686477824. Its totient is φ = 1193136000.

The previous prime is 4278591481. The next prime is 4278591509. The reversal of 4278591492 is 2941958724.

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, 598813 + ... + 605915.

It is an arithmetic number, because the mean of its divisors is an integer number (121734144).

Almost surely, 2^4278591492 is an apocalyptic number.

4278591492 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278591492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5843238912).

4278591492 is an abundant number, since it is smaller than the sum of its proper divisors (7407886332).

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

4278591492 is a wasteful number, since it uses less digits than its factorization.

4278591492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289 (or 7287 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 4278591492 is about 65410.9432128906. The cubic root of 4278591492 is about 1623.4301515488.

The spelling of 4278591492 in words is "four billion, two hundred seventy-eight million, five hundred ninety-one thousand, four hundred ninety-two".