27426630 has 128 divisors (see below), whose sum is σ = 84934656. Its totient is φ = 5500800.

The previous prime is 27426629. The next prime is 27426631. The reversal of 27426630 is 3662472.

It is an interprime number because it is at equal distance from previous prime (27426629) and next prime (27426631).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27426631) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71419 + ... + 71801.

It is an arithmetic number, because the mean of its divisors is an integer number (663552).

Almost surely, 2^27426630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27426630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42467328).

27426630 is an abundant number, since it is smaller than the sum of its proper divisors (57508026).

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

27426630 is a wasteful number, since it uses less digits than its factorization.

27426630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 27426630 is about 5237.0440135634. The cubic root of 27426630 is about 301.5718609048.

The spelling of 27426630 in words is "twenty-seven million, four hundred twenty-six thousand, six hundred thirty".