20914142 has 8 divisors (see below), whose sum is σ = 31395432. Its totient is φ = 10449000.

The previous prime is 20914129. The next prime is 20914147. The reversal of 20914142 is 24141902.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914147) 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, 17 + ... + 6467.

It is an arithmetic number, because the mean of its divisors is an integer number (3924429).

Almost surely, 2^20914142 is an apocalyptic number.

20914142 is a deficient number, since it is larger than the sum of its proper divisors (10481290).

20914142 is a wasteful number, since it uses less digits than its factorization.

20914142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20914142 is about 4573.1982244377. The cubic root of 20914142 is about 275.5159108644.

The spelling of 20914142 in words is "twenty million, nine hundred fourteen thousand, one hundred forty-two".