542072331 has 20 divisors (see below), whose sum is σ = 810990400. Its totient is φ = 360833616.

The previous prime is 542072329. The next prime is 542072341. The reversal of 542072331 is 133270245.

542072331 is a `hidden beast` number, since 5 + 420 + 7 + 233 + 1 = 666.

It is not a de Polignac number, because 542072331 - 2¹ = 542072329 is a prime.

It is a super-2 number, since 2×542072331² = 587684824071547122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542072295 and 542072304.

It is not an unprimeable number, because it can be changed into a prime (542072341) 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, 52710 + ... + 62148.

It is an arithmetic number, because the mean of its divisors is an integer number (40549520).

Almost surely, 2^542072331 is an apocalyptic number.

542072331 is a deficient number, since it is larger than the sum of its proper divisors (268918069).

542072331 is an equidigital number, since it uses as much as digits as its factorization.

542072331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10160 (or 10151 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 542072331 is about 23282.4468430618. The cubic root of 542072331 is about 815.3656537309.

The spelling of 542072331 in words is "five hundred forty-two million, seventy-two thousand, three hundred thirty-one".