20144374 has 8 divisors (see below), whose sum is σ = 30246840. Its totient is φ = 10062096.

The previous prime is 20144347. The next prime is 20144387. The reversal of 20144374 is 47344102.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239 + ... + 6730.

It is an arithmetic number, because the mean of its divisors is an integer number (3780855).

Almost surely, 2^20144374 is an apocalyptic number.

20144374 is a deficient number, since it is larger than the sum of its proper divisors (10102466).

20144374 is a wasteful number, since it uses less digits than its factorization.

20144374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 20144374 is about 4488.2484334092. The cubic root of 20144374 is about 272.0933485105.

Adding to 20144374 its reverse (47344102), we get a palindrome (67488476).

The spelling of 20144374 in words is "twenty million, one hundred forty-four thousand, three hundred seventy-four".