2045424021 has 8 divisors (see below), whose sum is σ = 2727467904. Its totient is φ = 1363498080.

The previous prime is 2045423993. The next prime is 2045424061. The reversal of 2045424021 is 1204245402.

It is a happy number.

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

It is not a de Polignac number, because 2045424021 - 2⁷ = 2045423893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2045423982 and 2045424000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045424061) 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, 25785 + ... + 68961.

It is an arithmetic number, because the mean of its divisors is an integer number (340933488).

Almost surely, 2^2045424021 is an apocalyptic number.

It is an amenable number.

2045424021 is a deficient number, since it is larger than the sum of its proper divisors (682043883).

2045424021 is a wasteful number, since it uses less digits than its factorization.

2045424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58971.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 2045424021 is about 45226.3642248634. The cubic root of 2045424021 is about 1269.3881817562.

Adding to 2045424021 its reverse (1204245402), we get a palindrome (3249669423).

The spelling of 2045424021 in words is "two billion, forty-five million, four hundred twenty-four thousand, twenty-one".