10402445 has 8 divisors (see below), whose sum is σ = 12913560. Its totient is φ = 8034880.

The previous prime is 10402429. The next prime is 10402451. The reversal of 10402445 is 54420401.

It can be written as a sum of positive squares in 4 ways, for example, as 1605289 + 8797156 = 1267^2 + 2966^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10402445 - 2⁴ = 10402429 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35726 + ... + 36015.

It is an arithmetic number, because the mean of its divisors is an integer number (1614195).

Almost surely, 2^10402445 is an apocalyptic number.

It is an amenable number.

10402445 is a deficient number, since it is larger than the sum of its proper divisors (2511115).

10402445 is an equidigital number, since it uses as much as digits as its factorization.

10402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71775.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 10402445 is about 3225.2821581995. The cubic root of 10402445 is about 218.2956807565.

Adding to 10402445 its reverse (54420401), we get a palindrome (64822846).

The spelling of 10402445 in words is "ten million, four hundred two thousand, four hundred forty-five".