542757240 has 64 divisors (see below), whose sum is σ = 1809194400. Its totient is φ = 144734976.

The previous prime is 542757239. The next prime is 542757277. The reversal of 542757240 is 42757245.

It is a happy number.

542757240 is a `hidden beast` number, since 5 + 42 + 7 + 572 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 542757195 and 542757204.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 250197 + ... + 252356.

Almost surely, 2^542757240 is an apocalyptic number.

It is an amenable number.

542757240 is an abundant number, since it is smaller than the sum of its proper divisors (1266437160).

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

542757240 is a wasteful number, since it uses less digits than its factorization.

542757240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502573 (or 502563 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 542757240 is about 23297.1508987687. The cubic root of 542757240 is about 815.7089143416.

The spelling of 542757240 in words is "five hundred forty-two million, seven hundred fifty-seven thousand, two hundred forty".