542289240 has 48 divisors (see below), whose sum is σ = 1762441200. Its totient is φ = 144610368.

The previous prime is 542289233. The next prime is 542289257. The reversal of 542289240 is 42982245.

542289240 is a `hidden beast` number, since 542 + 28 + 92 + 4 + 0 = 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 = 542289195 and 542289204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752820 + ... + 753539.

It is an arithmetic number, because the mean of its divisors is an integer number (36717525).

Almost surely, 2^542289240 is an apocalyptic number.

It is an amenable number.

542289240 is an abundant number, since it is smaller than the sum of its proper divisors (1220151960).

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

542289240 is a wasteful number, since it uses less digits than its factorization.

542289240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506376 (or 1506369 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 542289240 is about 23287.1045860150. The cubic root of 542289240 is about 815.4743947934.

The spelling of 542289240 in words is "five hundred forty-two million, two hundred eighty-nine thousand, two hundred forty".