4091019380 has 24 divisors (see below), whose sum is σ = 9818446848. Its totient is φ = 1402635168.

The previous prime is 4091019379. The next prime is 4091019389. The reversal of 4091019380 is 839101904.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 4091019380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091019389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14610644 + ... + 14610923.

It is an arithmetic number, because the mean of its divisors is an integer number (409101952).

Almost surely, 2^4091019380 is an apocalyptic number.

It is an amenable number.

4091019380 is an abundant number, since it is smaller than the sum of its proper divisors (5727427468).

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

4091019380 is a wasteful number, since it uses less digits than its factorization.

4091019380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29221583 (or 29221581 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 4091019380 is about 63961.0770703558. The cubic root of 4091019380 is about 1599.3512187332.

The spelling of 4091019380 in words is "four billion, ninety-one million, nineteen thousand, three hundred eighty".