20416049 has 8 divisors (see below), whose sum is σ = 20866560. Its totient is φ = 19970496.

The previous prime is 20416043. The next prime is 20416057. The reversal of 20416049 is 94061402.

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

It is a cyclic number.

It is not a de Polignac number, because 20416049 - 2¹² = 20411953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20416043) 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, 7784 + ... + 10070.

It is an arithmetic number, because the mean of its divisors is an integer number (2608320).

Almost surely, 2^20416049 is an apocalyptic number.

It is an amenable number.

20416049 is a deficient number, since it is larger than the sum of its proper divisors (450511).

20416049 is a wasteful number, since it uses less digits than its factorization.

20416049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20416049 is about 4518.4122211237. The cubic root of 20416049 is about 273.3110767455.

The spelling of 20416049 in words is "twenty million, four hundred sixteen thousand, forty-nine".