542545236 has 24 divisors (see below), whose sum is σ = 1406599040. Its totient is φ = 180848376.

The previous prime is 542545231. The next prime is 542545261. The reversal of 542545236 is 632545245.

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

It is a self number, because there is not a number n which added to its sum of digits gives 542545236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542545231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511676 + ... + 2511891.

Almost surely, 2^542545236 is an apocalyptic number.

It is an amenable number.

542545236 is an abundant number, since it is smaller than the sum of its proper divisors (864053804).

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

542545236 is a wasteful number, since it uses less digits than its factorization.

542545236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023580 (or 5023572 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 542545236 is about 23292.6004559388. The cubic root of 542545236 is about 815.6026936957.

Subtracting 542545236 from its reverse (632545245), we obtain a palindrome (90000009).

The spelling of 542545236 in words is "five hundred forty-two million, five hundred forty-five thousand, two hundred thirty-six".