20412402 has 16 divisors (see below), whose sum is σ = 40973472. Its totient is φ = 6779360.

The previous prime is 20412397. The next prime is 20412409. The reversal of 20412402 is 20421402.

It is not an unprimeable number, because it can be changed into a prime (20412409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4368 + ... + 7739.

It is an arithmetic number, because the mean of its divisors is an integer number (2560842).

Almost surely, 2^20412402 is an apocalyptic number.

20412402 is an abundant number, since it is smaller than the sum of its proper divisors (20561070).

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

20412402 is a wasteful number, since it uses less digits than its factorization.

20412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12393.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 20412402 is about 4518.0086321299. The cubic root of 20412402 is about 273.2948015616.

Adding to 20412402 its reverse (20421402), we get a palindrome (40833804).

The spelling of 20412402 in words is "twenty million, four hundred twelve thousand, four hundred two".