4090916 has 6 divisors (see below), whose sum is σ = 7159110. Its totient is φ = 2045456.

The previous prime is 4090913. The next prime is 4090921. The reversal of 4090916 is 6190904.

4090916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3534400 + 556516 = 1880^2 + 746^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4090913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511361 + ... + 511368.

It is an arithmetic number, because the mean of its divisors is an integer number (1193185).

Almost surely, 2^4090916 is an apocalyptic number.

It is an amenable number.

4090916 is a deficient number, since it is larger than the sum of its proper divisors (3068194).

4090916 is a wasteful number, since it uses less digits than its factorization.

4090916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022733 (or 1022731 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 4090916 is about 2022.6012953620. The cubic root of 4090916 is about 159.9337746759.

The spelling of 4090916 in words is "four million, ninety thousand, nine hundred sixteen".