20346402 has 8 divisors (see below), whose sum is σ = 40692816. Its totient is φ = 6782132.

The previous prime is 20346401. The next prime is 20346407. The reversal of 20346402 is 20464302.

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

20346402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20346401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695528 + ... + 1695539.

It is an arithmetic number, because the mean of its divisors is an integer number (5086602).

Almost surely, 2^20346402 is an apocalyptic number.

20346402 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.

20346402 is a wasteful number, since it uses less digits than its factorization.

20346402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391072.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20346402 is about 4510.6986155140. The cubic root of 20346402 is about 272.9999329120. Note that the first 4 decimals are identical.

The spelling of 20346402 in words is "twenty million, three hundred forty-six thousand, four hundred two".