540629 has 2 divisors, whose sum is σ = 540630. Its totient is φ = 540628.

The previous prime is 540619. The next prime is 540677. The reversal of 540629 is 926045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 528529 + 12100 = 727^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 540629 - 2⁴ = 540613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 540598 and 540607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270314 + 270315.

It is an arithmetic number, because the mean of its divisors is an integer number (270315).

2⁵⁴⁰⁶²⁹ is an apocalyptic number.

It is an amenable number.

540629 is a deficient number, since it is larger than the sum of its proper divisors (1).

540629 is an equidigital number, since it uses as much as digits as its factorization.

540629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 540629 is about 735.2747785692. The cubic root of 540629 is about 81.4641341680.

The spelling of 540629 in words is "five hundred forty thousand, six hundred twenty-nine".