2122478 has 8 divisors (see below), whose sum is σ = 3200472. Its totient is φ = 1055656.

The previous prime is 2122469. The next prime is 2122489. The reversal of 2122478 is 8742212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2300 + ... + 3087.

It is an arithmetic number, because the mean of its divisors is an integer number (400059).

2^2122478 is an apocalyptic number.

2122478 is a deficient number, since it is larger than the sum of its proper divisors (1077994).

2122478 is a wasteful number, since it uses less digits than its factorization.

2122478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586.

The product of its digits is 1792, while the sum is 26.

The square root of 2122478 is about 1456.8726780333. The cubic root of 2122478 is about 128.5131984404.

The spelling of 2122478 in words is "two million, one hundred twenty-two thousand, four hundred seventy-eight".