20398342 has 8 divisors (see below), whose sum is σ = 30630600. Its totient is φ = 10188144.

The previous prime is 20398333. The next prime is 20398387. The reversal of 20398342 is 24389302.

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

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, 2967 + ... + 7042.

It is an arithmetic number, because the mean of its divisors is an integer number (3828825).

Almost surely, 2^20398342 is an apocalyptic number.

20398342 is a deficient number, since it is larger than the sum of its proper divisors (10232258).

20398342 is a wasteful number, since it uses less digits than its factorization.

20398342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11030.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 20398342 is about 4516.4523688400. The cubic root of 20398342 is about 273.2320389417.

The spelling of 20398342 in words is "twenty million, three hundred ninety-eight thousand, three hundred forty-two".