27494640 has 100 divisors (see below), whose sum is σ = 95515464. Its totient is φ = 7330176.

The previous prime is 27494629. The next prime is 27494659. The reversal of 27494640 is 4649472.

27494640 is a `hidden beast` number, since 2 + 7 + 4 + 9 + 4 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27494595 and 27494604.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 4359 + ... + 8601.

Almost surely, 2^27494640 is an apocalyptic number.

27494640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27494640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47757732).

27494640 is an abundant number, since it is smaller than the sum of its proper divisors (68020824).

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

27494640 is a wasteful number, since it uses less digits than its factorization.

27494640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268 (or 4253 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 27494640 is about 5243.5331599981. The cubic root of 27494640 is about 301.8209250774.

The spelling of 27494640 in words is "twenty-seven million, four hundred ninety-four thousand, six hundred forty".