2378428 has 24 divisors (see below), whose sum is σ = 4572288. Its totient is φ = 1075776.

The previous prime is 2378423. The next prime is 2378443. The reversal of 2378428 is 8248732.

It is a d-powerful number, because it can be written as 2¹⁴ + 3³ + 7⁴ + 8² + 4⁴ + 2²¹ + 8⁶ .

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2378393 and 2378402.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 2325 + ... + 3187.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

2^2378428 is an apocalyptic number.

It is an amenable number.

2378428 is a deficient number, since it is larger than the sum of its proper divisors (2193860).

2378428 is a wasteful number, since it uses less digits than its factorization.

2378428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 931 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 2378428 is about 1542.2152897699. The cubic root of 2378428 is about 133.4842430214.

Adding to 2378428 its product of digits (21504), we get a palindrome (2399932).

The spelling of 2378428 in words is "two million, three hundred seventy-eight thousand, four hundred twenty-eight".