540451674 has 72 divisors (see below), whose sum is σ = 1399058388. Its totient is φ = 150232320.

The previous prime is 540451673. The next prime is 540451721. The reversal of 540451674 is 476154045.

540451674 is a `hidden beast` number, since 540 + 4 + 51 + 67 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 538472025 + 1979649 = 23205^2 + 1407^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (540451673) 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 35 ways as a sum of consecutive naturals, for example, 24354 + ... + 40914.

Almost surely, 2^540451674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540451674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699529194).

540451674 is an abundant number, since it is smaller than the sum of its proper divisors (858606714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540451674 is a wasteful number, since it uses less digits than its factorization.

540451674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16620 (or 16610 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 540451674 is about 23247.6165229901. The cubic root of 540451674 is about 814.5522646433.

The spelling of 540451674 in words is "five hundred forty million, four hundred fifty-one thousand, six hundred seventy-four".