542697624 has 128 divisors (see below), whose sum is σ = 1734988800. Its totient is φ = 153964800.

The previous prime is 542697553. The next prime is 542697653. The reversal of 542697624 is 426796245.

It is a super-2 number, since 2×542697624² = 589041422190490752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542697624.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227124 + ... + 229500.

It is an arithmetic number, because the mean of its divisors is an integer number (13554600).

Almost surely, 2^542697624 is an apocalyptic number.

542697624 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542697624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867494400).

542697624 is an abundant number, since it is smaller than the sum of its proper divisors (1192291176).

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

542697624 is a wasteful number, since it uses less digits than its factorization.

542697624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550 (or 2540 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 542697624 is about 23295.8713938758. The cubic root of 542697624 is about 815.6790476537.

The spelling of 542697624 in words is "five hundred forty-two million, six hundred ninety-seven thousand, six hundred twenty-four".