1238626 has 4 divisors (see below), whose sum is σ = 1857942. Its totient is φ = 619312.

The previous prime is 1238621. The next prime is 1238647. The reversal of 1238626 is 6268321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6268321 = 29 ⋅216149.

It can be written as a sum of positive squares in only one way, i.e., 1199025 + 39601 = 1095^2 + 199^2 .

It is a d-powerful number, because it can be written as 1 + 2¹⁰ + 3¹¹ + 8⁴ + 6 + 2²⁰ + 6⁵ .

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1238594 and 1238603.

It is not an unprimeable number, because it can be changed into a prime (1238621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309655 + ... + 309658.

2^1238626 is an apocalyptic number.

1238626 is a deficient number, since it is larger than the sum of its proper divisors (619316).

1238626 is an equidigital number, since it uses as much as digits as its factorization.

1238626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619315.

The product of its digits is 3456, while the sum is 28.

The square root of 1238626 is about 1112.9357573553. The cubic root of 1238626 is about 107.3940112739.

The spelling of 1238626 in words is "one million, two hundred thirty-eight thousand, six hundred twenty-six".