20371449 has 8 divisors (see below), whose sum is σ = 31042240. Its totient is φ = 11640816.

The previous prime is 20371447. The next prime is 20371459. The reversal of 20371449 is 94417302.

It is a happy number.

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

It is not a de Polignac number, because 20371449 - 2¹ = 20371447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20371447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485014 + ... + 485055.

It is an arithmetic number, because the mean of its divisors is an integer number (3880280).

Almost surely, 2^20371449 is an apocalyptic number.

It is an amenable number.

20371449 is a deficient number, since it is larger than the sum of its proper divisors (10670791).

20371449 is an equidigital number, since it uses as much as digits as its factorization.

20371449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970079.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20371449 is about 4513.4741607768. The cubic root of 20371449 is about 273.1119105380. Note that the first 3 decimals are identical.

It can be divided in two parts, 2037 and 1449, that added together give a triangular number (3486 = T₈₃).

The spelling of 20371449 in words is "twenty million, three hundred seventy-one thousand, four hundred forty-nine".