1258064 has 20 divisors (see below), whose sum is σ = 2479380. Its totient is φ = 618240.

The previous prime is 1258039. The next prime is 1258079. The reversal of 1258064 is 4608521.

It can be written as a sum of positive squares in 2 ways, for example, as 462400 + 795664 = 680^2 + 892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332 + ... + 1620.

It is an arithmetic number, because the mean of its divisors is an integer number (123969).

2^1258064 is an apocalyptic number.

It is an amenable number.

1258064 is a deficient number, since it is larger than the sum of its proper divisors (1221316).

1258064 is a wasteful number, since it uses less digits than its factorization.

1258064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1258064 is about 1121.6345215800. The cubic root of 1258064 is about 107.9528829681.

The spelling of 1258064 in words is "one million, two hundred fifty-eight thousand, sixty-four".