10021072 has 10 divisors (see below), whose sum is σ = 19415858. Its totient is φ = 5010528.

The previous prime is 10021069. The next prime is 10021073. The reversal of 10021072 is 27012001.

It can be written as a sum of positive squares in only one way, i.e., 5875776 + 4145296 = 2424^2 + 2036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313143 + ... + 313174.

Almost surely, 2^10021072 is an apocalyptic number.

It is an amenable number.

10021072 is a deficient number, since it is larger than the sum of its proper divisors (9394786).

10021072 is an equidigital number, since it uses as much as digits as its factorization.

10021072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626325 (or 626319 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 10021072 is about 3165.6076825785. The cubic root of 10021072 is about 215.5946903276.

Adding to 10021072 its reverse (27012001), we get a palindrome (37033073).

The spelling of 10021072 in words is "ten million, twenty-one thousand, seventy-two".