20671468 has 24 divisors (see below), whose sum is σ = 38470320. Its totient is φ = 9691200.

The previous prime is 20671423. The next prime is 20671471. The reversal of 20671468 is 86417602.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 6330 + ... + 9022.

It is an arithmetic number, because the mean of its divisors is an integer number (1602930).

Almost surely, 2^20671468 is an apocalyptic number.

It is an amenable number.

20671468 is a deficient number, since it is larger than the sum of its proper divisors (17798852).

20671468 is a wasteful number, since it uses less digits than its factorization.

20671468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20671468 is about 4546.5886112557. The cubic root of 20671468 is about 274.4461270760.

The spelling of 20671468 in words is "twenty million, six hundred seventy-one thousand, four hundred sixty-eight".