20403102 has 8 divisors (see below), whose sum is σ = 40806216. Its totient is φ = 6801032.

The previous prime is 20403083. The next prime is 20403121. The reversal of 20403102 is 20130402.

It is an interprime number because it is at equal distance from previous prime (20403083) and next prime (20403121).

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

20403102 is an admirable number.

It is a congruent number.

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, 1700253 + ... + 1700264.

It is an arithmetic number, because the mean of its divisors is an integer number (5100777).

Almost surely, 2^20403102 is an apocalyptic number.

20403102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20403102 is a wasteful number, since it uses less digits than its factorization.

20403102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400522.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20403102 is about 4516.9793003732. The cubic root of 20403102 is about 273.2532903969.

Adding to 20403102 its reverse (20130402), we get a palindrome (40533504).

The spelling of 20403102 in words is "twenty million, four hundred three thousand, one hundred two".