3634120491 has 8 divisors (see below), whose sum is σ = 4893469584. Its totient is φ = 2398759200.

The previous prime is 3634120439. The next prime is 3634120513. The reversal of 3634120491 is 1940214363.

3634120491 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3634120491 - 2⁷ = 3634120363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3634120411) 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, 5996596 + ... + 5997201.

It is an arithmetic number, because the mean of its divisors is an integer number (611683698).

Almost surely, 2^3634120491 is an apocalyptic number.

3634120491 is a deficient number, since it is larger than the sum of its proper divisors (1259349093).

3634120491 is a wasteful number, since it uses less digits than its factorization.

3634120491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11993901.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 3634120491 is about 60283.6668675687. Note that the first 3 decimals coincide. The cubic root of 3634120491 is about 1537.4456574619.

The spelling of 3634120491 in words is "three billion, six hundred thirty-four million, one hundred twenty thousand, four hundred ninety-one".