1630265 has 16 divisors (see below), whose sum is σ = 2408448. Its totient is φ = 1031616.

The previous prime is 1630261. The next prime is 1630273. The reversal of 1630265 is 5620361.

It is a cyclic number.

It is not a de Polignac number, because 1630265 - 2² = 1630261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1630265.

It is not an unprimeable number, because it can be changed into a prime (1630261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1337 + ... + 2246.

It is an arithmetic number, because the mean of its divisors is an integer number (150528).

2^1630265 is an apocalyptic number.

It is an amenable number.

1630265 is a deficient number, since it is larger than the sum of its proper divisors (778183).

1630265 is a wasteful number, since it uses less digits than its factorization.

1630265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1630265 is about 1276.8183112722. The cubic root of 1630265 is about 117.6935695756.

The spelling of 1630265 in words is "one million, six hundred thirty thousand, two hundred sixty-five".