542142018 has 64 divisors (see below), whose sum is σ = 1321372800. Its totient is φ = 163399680.

The previous prime is 542142001. The next prime is 542142023. The reversal of 542142018 is 810241245.

It is a super-2 number, since 2×542142018² = 587835935362224648, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 542141982 and 542142000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112278 + ... + 117006.

It is an arithmetic number, because the mean of its divisors is an integer number (20646450).

Almost surely, 2^542142018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542142018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660686400).

542142018 is an abundant number, since it is smaller than the sum of its proper divisors (779230782).

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

542142018 is a wasteful number, since it uses less digits than its factorization.

542142018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944 (or 4938 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 542142018 is about 23283.9433515889. The cubic root of 542142018 is about 815.4005924579.

The spelling of 542142018 in words is "five hundred forty-two million, one hundred forty-two thousand, eighteen".