542126890 has 16 divisors (see below), whose sum is σ = 989573760. Its totient is φ = 213796240.

The previous prime is 542126873. The next prime is 542126909. The reversal of 542126890 is 98621245.

It is a super-2 number, since 2×542126890² = 587803129722144200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381070 + ... + 382489.

It is an arithmetic number, because the mean of its divisors is an integer number (61848360).

Almost surely, 2^542126890 is an apocalyptic number.

542126890 is a deficient number, since it is larger than the sum of its proper divisors (447446870).

542126890 is a wasteful number, since it uses less digits than its factorization.

542126890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763637.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 542126890 is about 23283.6184902605. The cubic root of 542126890 is about 815.3930080400.

The spelling of 542126890 in words is "five hundred forty-two million, one hundred twenty-six thousand, eight hundred ninety".