1275630 has 32 divisors (see below), whose sum is σ = 3099168. Its totient is φ = 336000.

The previous prime is 1275611. The next prime is 1275643. The reversal of 1275630 is 365721.

It is a self number, because there is not a number n which added to its sum of digits gives 1275630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2820 + ... + 3240.

It is an arithmetic number, because the mean of its divisors is an integer number (96849).

2^1275630 is an apocalyptic number.

1275630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1275630 is an abundant number, since it is smaller than the sum of its proper divisors (1823538).

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

1275630 is a wasteful number, since it uses less digits than its factorization.

1275630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 1275630 is about 1129.4379133002. The cubic root of 1275630 is about 108.4530012278.

Subtracting from 1275630 its reverse (365721), we obtain a palindrome (909909).

The spelling of 1275630 in words is "one million, two hundred seventy-five thousand, six hundred thirty".