10533440 has 28 divisors (see below), whose sum is σ = 25083516. Its totient is φ = 4213248.

The previous prime is 10533437. The next prime is 10533461. The reversal of 10533440 is 4433501.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 5798464 = 2176^2 + 2408^2 .

It is a super-2 number, since 2×10533440² = 221906716467200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16139 + ... + 16778.

Almost surely, 2^10533440 is an apocalyptic number.

10533440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10533440 is an abundant number, since it is smaller than the sum of its proper divisors (14550076).

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

10533440 is an equidigital number, since it uses as much as digits as its factorization.

10533440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32934 (or 32924 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 10533440 is about 3245.5261514892. The cubic root of 10533440 is about 219.2081727466.

Adding to 10533440 its reverse (4433501), we get a palindrome (14966941).

The spelling of 10533440 in words is "ten million, five hundred thirty-three thousand, four hundred forty".