20454354 has 24 divisors (see below), whose sum is σ = 44854992. Its totient is φ = 6735480.

The previous prime is 20454347. The next prime is 20454359. The reversal of 20454354 is 45345402.

It is not an unprimeable number, because it can be changed into a prime (20454359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5352 + ... + 8339.

It is an arithmetic number, because the mean of its divisors is an integer number (1868958).

Almost surely, 2^20454354 is an apocalyptic number.

20454354 is an abundant number, since it is smaller than the sum of its proper divisors (24400638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20454354 is a wasteful number, since it uses less digits than its factorization.

20454354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782 (or 13779 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 20454354 is about 4522.6490025205. The cubic root of 20454354 is about 273.4819005276.

Adding to 20454354 its reverse (45345402), we get a palindrome (65799756).

The spelling of 20454354 in words is "twenty million, four hundred fifty-four thousand, three hundred fifty-four".