540401471 has 4 divisors (see below), whose sum is σ = 540487392. Its totient is φ = 540315552.

The previous prime is 540401461. The next prime is 540401489. The reversal of 540401471 is 174104045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540401471 is a prime.

It is a super-3 number, since 3×540401471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540401471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540401461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32711 + ... + 46376.

It is an arithmetic number, because the mean of its divisors is an integer number (135121848).

Almost surely, 2^540401471 is an apocalyptic number.

540401471 is a deficient number, since it is larger than the sum of its proper divisors (85921).

540401471 is an equidigital number, since it uses as much as digits as its factorization.

540401471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85920.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 540401471 is about 23246.5367528155. The cubic root of 540401471 is about 814.5270423860.

The spelling of 540401471 in words is "five hundred forty million, four hundred one thousand, four hundred seventy-one".