20119438 has 16 divisors (see below), whose sum is σ = 31212720. Its totient is φ = 9720000.

The previous prime is 20119433. The next prime is 20119439. The reversal of 20119438 is 83491102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20119433) 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, 7813 + ... + 10063.

It is an arithmetic number, because the mean of its divisors is an integer number (1950795).

Almost surely, 2^20119438 is an apocalyptic number.

20119438 is a deficient number, since it is larger than the sum of its proper divisors (11093282).

20119438 is a wasteful number, since it uses less digits than its factorization.

20119438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20119438 is about 4485.4696521100. The cubic root of 20119438 is about 271.9810306119.

It can be divided in two parts, 2011 and 9438, that added together give a square (11449 = 107²).

The spelling of 20119438 in words is "twenty million, one hundred nineteen thousand, four hundred thirty-eight".