542946240 has 140 divisors (see below), whose sum is σ = 1931447496. Its totient is φ = 144778752.

The previous prime is 542946203. The next prime is 542946241. The reversal of 542946240 is 42649245.

542946240 is a `hidden beast` number, since 5 + 4 + 29 + 4 + 624 + 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 = 542946195 and 542946204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542946241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15447 + ... + 36393.

Almost surely, 2^542946240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542946240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965723748).

542946240 is an abundant number, since it is smaller than the sum of its proper divisors (1388501256).

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

542946240 is a wasteful number, since it uses less digits than its factorization.

542946240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20976 (or 20957 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 542946240 is about 23301.2068356984. The cubic root of 542946240 is about 815.8035859442.

The spelling of 542946240 in words is "five hundred forty-two million, nine hundred forty-six thousand, two hundred forty".