34231021 has 12 divisors (see below), whose sum is σ = 38011932. Its totient is φ = 30800000.

The previous prime is 34231019. The next prime is 34231051. The reversal of 34231021 is 12013243.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26728900 + 7502121 = 5170^2 + 2739^2 .

It is not a de Polignac number, because 34231021 - 2¹ = 34231019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34230986 and 34231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34231051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10821 + ... + 13621.

It is an arithmetic number, because the mean of its divisors is an integer number (3167661).

Almost surely, 2^34231021 is an apocalyptic number.

It is an amenable number.

34231021 is a deficient number, since it is larger than the sum of its proper divisors (3780911).

34231021 is a wasteful number, since it uses less digits than its factorization.

34231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 34231021 is about 5850.7282452700. The cubic root of 34231021 is about 324.6932679967.

Adding to 34231021 its reverse (12013243), we get a palindrome (46244264).

It can be divided in two parts, 3423 and 1021, that added together give a palindrome (4444).

The spelling of 34231021 in words is "thirty-four million, two hundred thirty-one thousand, twenty-one".