20667342 has 16 divisors (see below), whose sum is σ = 43766352. Its totient is φ = 6483840.

The previous prime is 20667331. The next prime is 20667373. The reversal of 20667342 is 24376602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101209 + ... + 101412.

It is an arithmetic number, because the mean of its divisors is an integer number (2735397).

Almost surely, 2^20667342 is an apocalyptic number.

20667342 is an abundant number, since it is smaller than the sum of its proper divisors (23099010).

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

20667342 is a wasteful number, since it uses less digits than its factorization.

20667342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202643.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 20667342 is about 4546.1348418189. The cubic root of 20667342 is about 274.4278661560.

The spelling of 20667342 in words is "twenty million, six hundred sixty-seven thousand, three hundred forty-two".