10521072 has 30 divisors (see below), whose sum is σ = 29444792. Its totient is φ = 3506976.

The previous prime is 10521053. The next prime is 10521089. The reversal of 10521072 is 27012501.

It is a super-2 number, since 2×10521072² = 221385912058368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36388 + ... + 36675.

Almost surely, 2^10521072 is an apocalyptic number.

10521072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10521072 is an abundant number, since it is smaller than the sum of its proper divisors (18923720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10521072 is a wasteful number, since it uses less digits than its factorization.

10521072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73077 (or 73068 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 10521072 is about 3243.6201997151. The cubic root of 10521072 is about 219.1223436002.

Adding to 10521072 its reverse (27012501), we get a palindrome (37533573).

The spelling of 10521072 in words is "ten million, five hundred twenty-one thousand, seventy-two".