1266290 has 16 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 502320.

The previous prime is 1266281. The next prime is 1266301. The reversal of 1266290 is 926621.

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, 935 + ... + 1845.

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

2^1266290 is an apocalyptic number.

1266290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266290 is a deficient number, since it is larger than the sum of its proper divisors (1031950).

1266290 is a wasteful number, since it uses less digits than its factorization.

1266290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1266290 is about 1125.2955167422. The cubic root of 1266290 is about 108.1876595614.

The spelling of 1266290 in words is "one million, two hundred sixty-six thousand, two hundred ninety".