27769740 has 48 divisors (see below), whose sum is σ = 81139968. Its totient is φ = 7082944.

The previous prime is 27769739. The next prime is 27769747. The reversal of 27769740 is 4796772.

It is a junction number, because it is equal to n+sod(n) for n = 27769692 and 27769701.

It is not an unprimeable number, because it can be changed into a prime (27769747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8682 + ... + 11441.

It is an arithmetic number, because the mean of its divisors is an integer number (1690416).

Almost surely, 2^27769740 is an apocalyptic number.

27769740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27769740 is an abundant number, since it is smaller than the sum of its proper divisors (53370228).

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

27769740 is a wasteful number, since it uses less digits than its factorization.

27769740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20158 (or 20156 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 27769740 is about 5269.7001812247. The cubic root of 27769740 is about 302.8242180977.

The spelling of 27769740 in words is "twenty-seven million, seven hundred sixty-nine thousand, seven hundred forty".