1258870 has 8 divisors (see below), whose sum is σ = 2265984. Its totient is φ = 503544.

The previous prime is 1258847. The next prime is 1258871. The reversal of 1258870 is 788521.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62934 + ... + 62953.

It is an arithmetic number, because the mean of its divisors is an integer number (283248).

2^1258870 is an apocalyptic number.

1258870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1258870 is a deficient number, since it is larger than the sum of its proper divisors (1007114).

1258870 is a wasteful number, since it uses less digits than its factorization.

1258870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125894.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1258870 is about 1121.9937611235. The cubic root of 1258870 is about 107.9759319939.

It can be divided in two parts, 1258 and 870, that multiplied together give a triangular number (1094460 = T₁₄₇₉).

The spelling of 1258870 in words is "one million, two hundred fifty-eight thousand, eight hundred seventy".