1630460 has 24 divisors (see below), whose sum is σ = 3687936. Its totient is φ = 601920.

The previous prime is 1630459. The next prime is 1630463. The reversal of 1630460 is 640361.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2876 + ... + 3395.

It is an arithmetic number, because the mean of its divisors is an integer number (153664).

2^1630460 is an apocalyptic number.

1630460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630460 is an abundant number, since it is smaller than the sum of its proper divisors (2057476).

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

1630460 is a wasteful number, since it uses less digits than its factorization.

1630460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293 (or 6291 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1630460 is about 1276.8946706757. The cubic root of 1630460 is about 117.6982619275.

Subtracting from 1630460 its reverse (640361), we obtain a palindrome (990099).

The spelling of 1630460 in words is "one million, six hundred thirty thousand, four hundred sixty".