1258426 has 16 divisors (see below), whose sum is σ = 2104200. Its totient is φ = 560448.

The previous prime is 1258423. The next prime is 1258429. The reversal of 1258426 is 6248521.

It is an interprime number because it is at equal distance from previous prime (1258423) and next prime (1258429).

It can be written as a sum of positive squares in 4 ways, for example, as 904401 + 354025 = 951^2 + 595^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1258394 and 1258403.

It is not an unprimeable number, because it can be changed into a prime (1258421) 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, 81 + ... + 1588.

2^1258426 is an apocalyptic number.

1258426 is a deficient number, since it is larger than the sum of its proper divisors (845774).

1258426 is a wasteful number, since it uses less digits than its factorization.

1258426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713.

The product of its digits is 3840, while the sum is 28.

The square root of 1258426 is about 1121.7958816113. The cubic root of 1258426 is about 107.9632362294.

It can be divided in two parts, 12584 and 26, that multiplied together give a square (327184 = 572²).

The spelling of 1258426 in words is "one million, two hundred fifty-eight thousand, four hundred twenty-six".