720535542 has 16 divisors (see below), whose sum is σ = 1487557632. Its totient is φ = 232430760.

The previous prime is 720535507. The next prime is 720535549. The reversal of 720535542 is 245535027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720535549) 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, 1936738 + ... + 1937109.

It is an arithmetic number, because the mean of its divisors is an integer number (92972352).

Almost surely, 2^720535542 is an apocalyptic number.

720535542 is an abundant number, since it is smaller than the sum of its proper divisors (767022090).

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

720535542 is a wasteful number, since it uses less digits than its factorization.

720535542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873883.

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 720535542 is about 26842.7931110009. The cubic root of 720535542 is about 896.5031146508.

The spelling of 720535542 in words is "seven hundred twenty million, five hundred thirty-five thousand, five hundred forty-two".