20374949 has 8 divisors (see below), whose sum is σ = 23725440. Its totient is φ = 17134416.

The previous prime is 20374943. The next prime is 20374951. The reversal of 20374949 is 94947302.

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 20374949 - 2⁴ = 20374933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20374943) 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, 27089 + ... + 27830.

It is an arithmetic number, because the mean of its divisors is an integer number (2965680).

Almost surely, 2^20374949 is an apocalyptic number.

It is an amenable number.

20374949 is a deficient number, since it is larger than the sum of its proper divisors (3350491).

20374949 is an equidigital number, since it uses as much as digits as its factorization.

20374949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54979.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 20374949 is about 4513.8618720559. The cubic root of 20374949 is about 273.1275506781.

The spelling of 20374949 in words is "twenty million, three hundred seventy-four thousand, nine hundred forty-nine".