2378722 has 4 divisors (see below), whose sum is σ = 3568086. Its totient is φ = 1189360.

The previous prime is 2378711. The next prime is 2378737. The reversal of 2378722 is 2278732.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2368521 + 10201 = 1539^2 + 101^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594679 + ... + 594682.

2^2378722 is an apocalyptic number.

2378722 is a deficient number, since it is larger than the sum of its proper divisors (1189364).

2378722 is a wasteful number, since it uses less digits than its factorization.

2378722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189363.

The product of its digits is 9408, while the sum is 31.

The square root of 2378722 is about 1542.3106042558. The cubic root of 2378722 is about 133.4897428376.

The spelling of 2378722 in words is "two million, three hundred seventy-eight thousand, seven hundred twenty-two".