27404642 has 12 divisors (see below), whose sum is σ = 42252210. Its totient is φ = 13330656.

The previous prime is 27404627. The next prime is 27404719. The reversal of 27404642 is 24640472.

It can be written as a sum of positive squares in 3 ways, for example, as 22743361 + 4661281 = 4769^2 + 2159^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2267 + ... + 7742.

Almost surely, 2^27404642 is an apocalyptic number.

27404642 is a deficient number, since it is larger than the sum of its proper divisors (14847568).

27404642 is a wasteful number, since it uses less digits than its factorization.

27404642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10085 (or 10048 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 27404642 is about 5234.9443168003. The cubic root of 27404642 is about 301.4912490459.

The spelling of 27404642 in words is "twenty-seven million, four hundred four thousand, six hundred forty-two".