1158270 has 16 divisors (see below), whose sum is σ = 2779920. Its totient is φ = 308864.

The previous prime is 1158263. The next prime is 1158271. The reversal of 1158270 is 728511.

It is a self number, because there is not a number n which added to its sum of digits gives 1158270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158271) 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, 19275 + ... + 19334.

It is an arithmetic number, because the mean of its divisors is an integer number (173745).

2^1158270 is an apocalyptic number.

1158270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1158270 is an abundant number, since it is smaller than the sum of its proper divisors (1621650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1158270 is a wasteful number, since it uses less digits than its factorization.

1158270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38619.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 1158270 is about 1076.2295294220. The cubic root of 1158270 is about 105.0194975131.

It can be divided in two parts, 115 and 8270, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 1158270 in words is "one million, one hundred fifty-eight thousand, two hundred seventy".