542626938 has 80 divisors (see below), whose sum is σ = 1419289344. Its totient is φ = 151722720.

The previous prime is 542626913. The next prime is 542626939. The reversal of 542626938 is 839626245.

542626938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 542626893 and 542626902.

It is not an unprimeable number, because it can be changed into a prime (542626939) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48208 + ... + 58388.

Almost surely, 2^542626938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542626938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709644672).

542626938 is an abundant number, since it is smaller than the sum of its proper divisors (876662406).

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

542626938 is a wasteful number, since it uses less digits than its factorization.

542626938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10249 (or 10240 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 542626938 is about 23294.3542086919. The cubic root of 542626938 is about 815.6436322339.

The spelling of 542626938 in words is "five hundred forty-two million, six hundred twenty-six thousand, nine hundred thirty-eight".