27401401 has 16 divisors (see below), whose sum is σ = 29620800. Its totient is φ = 25272000.

The previous prime is 27401369. The next prime is 27401411. The reversal of 27401401 is 10410472.

It is a 3-Lehmer number, since φ(27401401) divides (27401401-1)³.

It is a cyclic number.

It is not a de Polignac number, because 27401401 - 2⁵ = 27401369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27401411) 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, 209106 + ... + 209236.

It is an arithmetic number, because the mean of its divisors is an integer number (1851300).

It is a Poulet number, since it divides 2^27401400-1.

Almost surely, 2^27401401 is an apocalyptic number.

It is an amenable number.

27401401 is a deficient number, since it is larger than the sum of its proper divisors (2219399).

27401401 is a wasteful number, since it uses less digits than its factorization.

27401401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 27401401 is about 5234.6347532564. The cubic root of 27401401 is about 301.4793633264.

Adding to 27401401 its reverse (10410472), we get a palindrome (37811873).

The spelling of 27401401 in words is "twenty-seven million, four hundred one thousand, four hundred one".