542057638 has 8 divisors (see below), whose sum is σ = 832917960. Its totient is φ = 264418320.

The previous prime is 542057611. The next prime is 542057639. The reversal of 542057638 is 836750245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 542057638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542057639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3305148 + ... + 3305311.

It is an arithmetic number, because the mean of its divisors is an integer number (104114745).

Almost surely, 2^542057638 is an apocalyptic number.

542057638 is a deficient number, since it is larger than the sum of its proper divisors (290860322).

542057638 is a wasteful number, since it uses less digits than its factorization.

542057638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610502.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 542057638 is about 23282.1313027824. The cubic root of 542057638 is about 815.3582867707.

The spelling of 542057638 in words is "five hundred forty-two million, fifty-seven thousand, six hundred thirty-eight".