22378001 has 8 divisors (see below), whose sum is σ = 24459264. Its totient is φ = 20381760.

The previous prime is 22377989. The next prime is 22378009. The reversal of 22378001 is 10087322.

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

It is a cyclic number.

It is not a de Polignac number, because 22378001 - 2¹⁴ = 22361617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22378009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20705 + ... + 21758.

It is an arithmetic number, because the mean of its divisors is an integer number (3057408).

Almost surely, 2^22378001 is an apocalyptic number.

It is an amenable number.

22378001 is a deficient number, since it is larger than the sum of its proper divisors (2081263).

22378001 is a wasteful number, since it uses less digits than its factorization.

22378001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42511.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 22378001 is about 4730.5391870272. The cubic root of 22378001 is about 281.7996371961.

The spelling of 22378001 in words is "twenty-two million, three hundred seventy-eight thousand, one".