27421470 has 32 divisors (see below), whose sum is σ = 73124640. Its totient is φ = 7312320.

The previous prime is 27421469. The next prime is 27421481. The reversal of 27421470 is 7412472.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50511 + ... + 51050.

It is an arithmetic number, because the mean of its divisors is an integer number (2285145).

Almost surely, 2^27421470 is an apocalyptic number.

27421470 is an abundant number, since it is smaller than the sum of its proper divisors (45703170).

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

27421470 is a wasteful number, since it uses less digits than its factorization.

27421470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101577 (or 101571 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 27421470 is about 5236.5513460674. The cubic root of 27421470 is about 301.5529473112.

The spelling of 27421470 in words is "twenty-seven million, four hundred twenty-one thousand, four hundred seventy".