4345486021 has 4 divisors (see below), whose sum is σ = 4345661632. Its totient is φ = 4345310412.

The previous prime is 4345486009. The next prime is 4345486027. The reversal of 4345486021 is 1206845434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1206845434 = 2 ⋅603422717.

It is a cyclic number.

It is not a de Polignac number, because 4345486021 - 2¹⁵ = 4345453253 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 (4345486027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43101 + ... + 102706.

It is an arithmetic number, because the mean of its divisors is an integer number (1086415408).

Almost surely, 2^4345486021 is an apocalyptic number.

It is an amenable number.

4345486021 is a deficient number, since it is larger than the sum of its proper divisors (175611).

4345486021 is a wasteful number, since it uses less digits than its factorization.

4345486021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175610.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 4345486021 is about 65920.3005226766. The cubic root of 4345486021 is about 1631.8470563302.

The spelling of 4345486021 in words is "four billion, three hundred forty-five million, four hundred eighty-six thousand, twenty-one".