1461630 has 32 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 384416.

The previous prime is 1461623. The next prime is 1461631. The reversal of 1461630 is 361641.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1461597 and 1461606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197 + ... + 2783.

It is an arithmetic number, because the mean of its divisors is an integer number (111132).

2^1461630 is an apocalyptic number.

1461630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1461630 is an abundant number, since it is smaller than the sum of its proper divisors (2094594).

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

1461630 is a wasteful number, since it uses less digits than its factorization.

1461630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1461630 is about 1208.9789080046. The cubic root of 1461630 is about 113.4869217143.

The spelling of 1461630 in words is "one million, four hundred sixty-one thousand, six hundred thirty".