1269628 has 12 divisors (see below), whose sum is σ = 2352672. Its totient is φ = 597440.

The previous prime is 1269601. The next prime is 1269641. The reversal of 1269628 is 8269621.

It is a happy number.

It is a super-2 number, since 2×1269628² = 3223910516768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 1269593 and 1269602.

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, 9268 + ... + 9403.

It is an arithmetic number, because the mean of its divisors is an integer number (196056).

2^1269628 is an apocalyptic number.

It is an amenable number.

1269628 is a deficient number, since it is larger than the sum of its proper divisors (1083044).

1269628 is a wasteful number, since it uses less digits than its factorization.

1269628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18692 (or 18690 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 1269628 is about 1126.7777065597. Note that the first 4 decimals coincide. The cubic root of 1269628 is about 108.2826387401.

The spelling of 1269628 in words is "one million, two hundred sixty-nine thousand, six hundred twenty-eight".