4090778124 has 12 divisors (see below), whose sum is σ = 9545148984. Its totient is φ = 1363592704.

The previous prime is 4090778117. The next prime is 4090778141. The reversal of 4090778124 is 4218770904.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170449077 + ... + 170449100.

It is an arithmetic number, because the mean of its divisors is an integer number (795429082).

Almost surely, 2^4090778124 is an apocalyptic number.

It is an amenable number.

4090778124 is an abundant number, since it is smaller than the sum of its proper divisors (5454370860).

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

4090778124 is a wasteful number, since it uses less digits than its factorization.

4090778124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340898184 (or 340898182 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 4090778124 is about 63959.1910830648. The cubic root of 4090778124 is about 1599.3197790823.

The spelling of 4090778124 in words is "four billion, ninety million, seven hundred seventy-eight thousand, one hundred twenty-four".