13630842 has 28 divisors (see below), whose sum is σ = 30658650. Its totient is φ = 4543128.

The previous prime is 13630831. The next prime is 13630861. The reversal of 13630842 is 24803631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9308601 + 4322241 = 3051^2 + 2079^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3217 + ... + 6132.

Almost surely, 2^13630842 is an apocalyptic number.

13630842 is an abundant number, since it is smaller than the sum of its proper divisors (17027808).

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

13630842 is an frugal number, since it uses more digits than its factorization.

13630842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369 (or 9354 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13630842 is about 3691.9970205838. The cubic root of 13630842 is about 238.8769404356.

The spelling of 13630842 in words is "thirteen million, six hundred thirty thousand, eight hundred forty-two".