20454061 has 8 divisors (see below), whose sum is σ = 21706560. Its totient is φ = 19231872.

The previous prime is 20454059. The next prime is 20454067. The reversal of 20454061 is 16045402.

20454061 = T₄₇₄ + T₄₇₅ + ... + T₆₁₁.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20454061 - 2¹ = 20454059 is a prime.

It is a super-2 number, since 2×20454061² = 836737222783442, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454067) 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, 6180 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (2713320).

Almost surely, 2^20454061 is an apocalyptic number.

It is an amenable number.

20454061 is a deficient number, since it is larger than the sum of its proper divisors (1252499).

20454061 is a wasteful number, since it uses less digits than its factorization.

20454061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15155.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20454061 is about 4522.6166098841. The cubic root of 20454061 is about 273.4805946837.

Adding to 20454061 its reverse (16045402), we get a palindrome (36499463).

The spelling of 20454061 in words is "twenty million, four hundred fifty-four thousand, sixty-one".