27631340 has 24 divisors (see below), whose sum is σ = 63301392. Its totient is φ = 10047680.

The previous prime is 27631337. The next prime is 27631343. The reversal of 27631340 is 4313672.

It is an interprime number because it is at equal distance from previous prime (27631337) and next prime (27631343).

It is a super-3 number, since 3×27631340³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (27631343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62579 + ... + 63018.

It is an arithmetic number, because the mean of its divisors is an integer number (2637558).

Almost surely, 2^27631340 is an apocalyptic number.

27631340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27631340 is an abundant number, since it is smaller than the sum of its proper divisors (35670052).

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

27631340 is a wasteful number, since it uses less digits than its factorization.

27631340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125617 (or 125615 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 27631340 is about 5256.5521019010. The cubic root of 27631340 is about 302.3203039939.

The spelling of 27631340 in words is "twenty-seven million, six hundred thirty-one thousand, three hundred forty".