1727680401 has 16 divisors (see below), whose sum is σ = 2569269120. Its totient is φ = 1147402800.

The previous prime is 1727680399. The next prime is 1727680457. The reversal of 1727680401 is 1040867271.

1727680401 is a `hidden beast` number, since 172 + 7 + 6 + 80 + 401 = 666.

It is not a de Polignac number, because 1727680401 - 2¹ = 1727680399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1727681401) 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, 114550 + ... + 128751.

It is an arithmetic number, because the mean of its divisors is an integer number (160579320).

Almost surely, 2^1727680401 is an apocalyptic number.

It is an amenable number.

1727680401 is a deficient number, since it is larger than the sum of its proper divisors (841588719).

1727680401 is a wasteful number, since it uses less digits than its factorization.

1727680401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243573 (or 243567 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 1727680401 is about 41565.3750253742. The cubic root of 1727680401 is about 1199.9260141885.

The spelling of 1727680401 in words is "one billion, seven hundred twenty-seven million, six hundred eighty thousand, four hundred one".