540448657 has 8 divisors (see below), whose sum is σ = 619010816. Its totient is φ = 462225312.

The previous prime is 540448631. The next prime is 540448661. The reversal of 540448657 is 756844045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540448657 - 2²³ = 532060049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540442657) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81273 + ... + 87670.

It is an arithmetic number, because the mean of its divisors is an integer number (77376352).

Almost surely, 2^540448657 is an apocalyptic number.

It is an amenable number.

540448657 is a deficient number, since it is larger than the sum of its proper divisors (78562159).

540448657 is a wasteful number, since it uses less digits than its factorization.

540448657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169407.

The product of its (nonzero) digits is 537600, while the sum is 43.

The square root of 540448657 is about 23247.5516345270. The cubic root of 540448657 is about 814.5507489304.

The spelling of 540448657 in words is "five hundred forty million, four hundred forty-eight thousand, six hundred fifty-seven".