20464378 has 8 divisors (see below), whose sum is σ = 33487200. Its totient is φ = 9301980.

The previous prime is 20464373. The next prime is 20464391. The reversal of 20464378 is 87346402.

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

It is not an unprimeable number, because it can be changed into a prime (20464373) 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, 465078 + ... + 465121.

It is an arithmetic number, because the mean of its divisors is an integer number (4185900).

Almost surely, 2^20464378 is an apocalyptic number.

20464378 is a deficient number, since it is larger than the sum of its proper divisors (13022822).

20464378 is a wasteful number, since it uses less digits than its factorization.

20464378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930212.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 20464378 is about 4523.7570668638. The cubic root of 20464378 is about 273.5265680325.

The spelling of 20464378 in words is "twenty million, four hundred sixty-four thousand, three hundred seventy-eight".