2438657 has 8 divisors (see below), whose sum is σ = 2651880. Its totient is φ = 2229120.

The previous prime is 2438629. The next prime is 2438671. The reversal of 2438657 is 7568342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 410881 + 2027776 = 641^2 + 1424^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2438657 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 4⁹ + 3⁶ + 8⁷ + 6² + 5⁷ + 7³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2438617) 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, 557 + ... + 2277.

It is an arithmetic number, because the mean of its divisors is an integer number (331485).

2^2438657 is an apocalyptic number.

It is an amenable number.

2438657 is a deficient number, since it is larger than the sum of its proper divisors (213223).

2438657 is a wasteful number, since it uses less digits than its factorization.

2438657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its digits is 40320, while the sum is 35.

The square root of 2438657 is about 1561.6199921876. The cubic root of 2438657 is about 134.6016055305.

The spelling of 2438657 in words is "two million, four hundred thirty-eight thousand, six hundred fifty-seven".