10402002 has 24 divisors (see below), whose sum is σ = 24271884. Its totient is φ = 3200544.

The previous prime is 10401973. The next prime is 10402031. The reversal of 10402002 is 20020401.

It is an interprime number because it is at equal distance from previous prime (10401973) and next prime (10402031).

It can be written as a sum of positive squares in 2 ways, for example, as 9054081 + 1347921 = 3009^2 + 1161^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21993 + ... + 22460.

Almost surely, 2^10402002 is an apocalyptic number.

10402002 is an abundant number, since it is smaller than the sum of its proper divisors (13869882).

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

10402002 is a wasteful number, since it uses less digits than its factorization.

10402002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44474 (or 44471 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 10402002 is about 3225.2134813063. The cubic root of 10402002 is about 218.2925819223.

Adding to 10402002 its reverse (20020401), we get a palindrome (30422403).

The spelling of 10402002 in words is "ten million, four hundred two thousand, two".