2378426 has 4 divisors (see below), whose sum is σ = 3567642. Its totient is φ = 1189212.

The previous prime is 2378423. The next prime is 2378443. The reversal of 2378426 is 6248732.

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., 2356225 + 22201 = 1535^2 + 149^2 .

It is a d-powerful number, because it can be written as 2 + 3⁶ + 7³ + 8 + 4⁴ + 2²¹ + 6⁷ .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2378392 and 2378401.

It is not an unprimeable number, because it can be changed into a prime (2378423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594605 + ... + 594608.

2^2378426 is an apocalyptic number.

2378426 is a deficient number, since it is larger than the sum of its proper divisors (1189216).

2378426 is a wasteful number, since it uses less digits than its factorization.

2378426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189215.

The product of its digits is 16128, while the sum is 32.

The square root of 2378426 is about 1542.2146413518. The cubic root of 2378426 is about 133.4842056062.

The spelling of 2378426 in words is "two million, three hundred seventy-eight thousand, four hundred twenty-six".