27220040 has 32 divisors (see below), whose sum is σ = 63910080. Its totient is φ = 10414272.

The previous prime is 27220031. The next prime is 27220057. The reversal of 27220040 is 4002272.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13874 + ... + 15713.

It is an arithmetic number, because the mean of its divisors is an integer number (1997190).

Almost surely, 2^27220040 is an apocalyptic number.

27220040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27220040 is an abundant number, since it is smaller than the sum of its proper divisors (36690040).

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

27220040 is a wasteful number, since it uses less digits than its factorization.

27220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29621 (or 29617 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 27220040 is about 5217.2828177127. The cubic root of 27220040 is about 300.8127590502.

The spelling of 27220040 in words is "twenty-seven million, two hundred twenty thousand, forty".