20234045 has 8 divisors (see below), whose sum is σ = 26148696. Its totient is φ = 14942016.

The previous prime is 20234023. The next prime is 20234047. The reversal of 20234045 is 54043202.

It can be written as a sum of positive squares in 4 ways, for example, as 502681 + 19731364 = 709^2 + 4442^2 .

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 20234045 - 2⁸ = 20233789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234047) 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, 155582 + ... + 155711.

It is an arithmetic number, because the mean of its divisors is an integer number (3268587).

Almost surely, 2^20234045 is an apocalyptic number.

It is an amenable number.

20234045 is a deficient number, since it is larger than the sum of its proper divisors (5914651).

20234045 is a wasteful number, since it uses less digits than its factorization.

20234045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311311.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20234045 is about 4498.2268728911. The cubic root of 20234045 is about 272.4964845379.

Adding to 20234045 its reverse (54043202), we get a palindrome (74277247).

It can be divided in two parts, 2023 and 4045, that multiplied together give a triangular number (8183035 = T₄₀₄₅).

The spelling of 20234045 in words is "twenty million, two hundred thirty-four thousand, forty-five".