1268870 has 16 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 504384.

The previous prime is 1268867. The next prime is 1268881. The reversal of 1268870 is 788621.

It is a super-2 number, since 2×1268870² = 3220062153800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1946 + ... + 2514.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^1268870 is an apocalyptic number.

1268870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1268870 is a deficient number, since it is larger than the sum of its proper divisors (1029370).

1268870 is a wasteful number, since it uses less digits than its factorization.

1268870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1268870 is about 1126.4412989588. The cubic root of 1268870 is about 108.2610852930.

Subtracting from 1268870 its reverse (788621), we obtain a square (480249 = 693²).

The spelling of 1268870 in words is "one million, two hundred sixty-eight thousand, eight hundred seventy".