102440033 has 4 divisors (see below), whose sum is σ = 103127700. Its totient is φ = 101752368.

The previous prime is 102440021. The next prime is 102440069. The reversal of 102440033 is 330044201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14961424 + 87478609 = 3868^2 + 9353^2 .

It is a cyclic number.

It is not a de Polignac number, because 102440033 - 2¹² = 102435937 is a prime.

It is a super-2 number, since 2×102440033² = 20987920722082178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102439993 and 102440020.

It is not an unprimeable number, because it can be changed into a prime (102442033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343610 + ... + 343907.

It is an arithmetic number, because the mean of its divisors is an integer number (25781925).

Almost surely, 2^102440033 is an apocalyptic number.

It is an amenable number.

102440033 is a deficient number, since it is larger than the sum of its proper divisors (687667).

102440033 is an equidigital number, since it uses as much as digits as its factorization.

102440033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687666.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 102440033 is about 10121.2663733349. The cubic root of 102440033 is about 467.9037974636.

Adding to 102440033 its reverse (330044201), we get a palindrome (432484234).

The spelling of 102440033 in words is "one hundred two million, four hundred forty thousand, thirty-three".