1630365 has 32 divisors (see below), whose sum is σ = 2927232. Its totient is φ = 768000.

The previous prime is 1630361. The next prime is 1630367. The reversal of 1630365 is 5630361.

It is not a de Polignac number, because 1630365 - 2² = 1630361 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6645 + ... + 6885.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2^1630365 is an apocalyptic number.

1630365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630365 is a deficient number, since it is larger than the sum of its proper divisors (1296867).

1630365 is a wasteful number, since it uses less digits than its factorization.

1630365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1630365 is about 1276.8574705111. The cubic root of 1630365 is about 117.6959759567.

It can be divided in two parts, 16 and 30365, that added together give a triangular number (30381 = T₂₄₆).

The spelling of 1630365 in words is "one million, six hundred thirty thousand, three hundred sixty-five".