20103402 has 16 divisors (see below), whose sum is σ = 43862112. Its totient is φ = 6091920.

The previous prime is 20103383. The next prime is 20103427. The reversal of 20103402 is 20430102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152233 + ... + 152364.

It is an arithmetic number, because the mean of its divisors is an integer number (2741382).

Almost surely, 2^20103402 is an apocalyptic number.

20103402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20103402 is an abundant number, since it is smaller than the sum of its proper divisors (23758710).

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

20103402 is a wasteful number, since it uses less digits than its factorization.

20103402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304613.

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

The square root of 20103402 is about 4483.6817460654. The cubic root of 20103402 is about 271.9087514711.

Adding to 20103402 its reverse (20430102), we get a palindrome (40533504).

The spelling of 20103402 in words is "twenty million, one hundred three thousand, four hundred two".