20411149 has 16 divisors (see below), whose sum is σ = 23837760. Its totient is φ = 17280000.

The previous prime is 20411147. The next prime is 20411221. The reversal of 20411149 is 94111402.

It is a cyclic number.

It is not a de Polignac number, because 20411149 - 2¹ = 20411147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11949 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (1489860).

Almost surely, 2^20411149 is an apocalyptic number.

It is an amenable number.

20411149 is a deficient number, since it is larger than the sum of its proper divisors (3426611).

20411149 is a wasteful number, since it uses less digits than its factorization.

20411149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 20411149 is about 4517.8699627147. The cubic root of 20411149 is about 273.2892094483.

The spelling of 20411149 in words is "twenty million, four hundred eleven thousand, one hundred forty-nine".