2456438 has 4 divisors (see below), whose sum is σ = 3684660. Its totient is φ = 1228218.

The previous prime is 2456437. The next prime is 2456459. The reversal of 2456438 is 8346542.

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

It is a d-powerful number, because it can be written as 2⁵ + 4⁶ + 5⁵ + 6⁷ + 4⁸ + 3⁸ + 8⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2456431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614108 + ... + 614111.

It is an arithmetic number, because the mean of its divisors is an integer number (921165).

2^2456438 is an apocalyptic number.

2456438 is a deficient number, since it is larger than the sum of its proper divisors (1228222).

2456438 is a wasteful number, since it uses less digits than its factorization.

2456438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228221.

The product of its digits is 23040, while the sum is 32.

The square root of 2456438 is about 1567.3027786615. The cubic root of 2456438 is about 134.9279542421.

The spelling of 2456438 in words is "two million, four hundred fifty-six thousand, four hundred thirty-eight".