20954000 has 40 divisors (see below), whose sum is σ = 50671608. Its totient is φ = 8380800.

The previous prime is 20953997. The next prime is 20954009. The reversal of 20954000 is 45902.

It can be written as a sum of positive squares in 4 ways, for example, as 123904 + 20830096 = 352^2 + 4564^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20954009) 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, 3239 + ... + 7238.

Almost surely, 2^20954000 is an apocalyptic number.

20954000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20954000 is an abundant number, since it is smaller than the sum of its proper divisors (29717608).

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

20954000 is a wasteful number, since it uses less digits than its factorization.

20954000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500 (or 10484 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 20954000 is about 4577.5539319597. The cubic root of 20954000 is about 275.6908251145.

Adding to 20954000 its reverse (45902), we get a palindrome (20999902).

The spelling of 20954000 in words is "twenty million, nine hundred fifty-four thousand".