20383442 has 8 divisors (see below), whose sum is σ = 32373756. Its totient is φ = 9592192.

The previous prime is 20383439. The next prime is 20383453. The reversal of 20383442 is 24438302.

It can be written as a sum of positive squares in 2 ways, for example, as 19193161 + 1190281 = 4381^2 + 1091^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299723 + ... + 299790.

Almost surely, 2^20383442 is an apocalyptic number.

20383442 is a deficient number, since it is larger than the sum of its proper divisors (11990314).

20383442 is a wasteful number, since it uses less digits than its factorization.

20383442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599532.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 20383442 is about 4514.8025427476. The cubic root of 20383442 is about 273.1654951503.

The spelling of 20383442 in words is "twenty million, three hundred eighty-three thousand, four hundred forty-two".