20426354 has 24 divisors (see below), whose sum is σ = 33449472. Its totient is φ = 9350640.

The previous prime is 20426321. The next prime is 20426389. The reversal of 20426354 is 45362402.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75239 + ... + 75509.

It is an arithmetic number, because the mean of its divisors is an integer number (1393728).

Almost surely, 2^20426354 is an apocalyptic number.

20426354 is a deficient number, since it is larger than the sum of its proper divisors (13023118).

20426354 is a wasteful number, since it uses less digits than its factorization.

20426354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 20426354 is about 4519.5524114673. The cubic root of 20426354 is about 273.3570535962.

Adding to 20426354 its reverse (45362402), we get a palindrome (65788756).

The spelling of 20426354 in words is "twenty million, four hundred twenty-six thousand, three hundred fifty-four".