20368426 has 32 divisors (see below), whose sum is σ = 34933248. Its totient is φ = 8838720.

The previous prime is 20368423. The next prime is 20368441. The reversal of 20368426 is 62486302.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (20368423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29481 + ... + 30163.

It is an arithmetic number, because the mean of its divisors is an integer number (1091664).

Almost surely, 2^20368426 is an apocalyptic number.

20368426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20368426 is a deficient number, since it is larger than the sum of its proper divisors (14564822).

20368426 is a wasteful number, since it uses less digits than its factorization.

20368426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 20368426 is about 4513.1392621988. The cubic root of 20368426 is about 273.0984004837.

It can be divided in two parts, 20368 and 426, that multiplied together give a palindrome (8676768).

The spelling of 20368426 in words is "twenty million, three hundred sixty-eight thousand, four hundred twenty-six".