542447427 has 8 divisors (see below), whose sum is σ = 723446464. Its totient is φ = 361540008.

The previous prime is 542447419. The next prime is 542447443. The reversal of 542447427 is 724744245.

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

It is not a de Polignac number, because 542447427 - 2³ = 542447419 is a prime.

It is a super-2 number, since 2×542447427² = 588498422117840658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542447447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7633 + ... + 33810.

It is an arithmetic number, because the mean of its divisors is an integer number (90430808).

Almost surely, 2^542447427 is an apocalyptic number.

542447427 is a deficient number, since it is larger than the sum of its proper divisors (180999037).

542447427 is a wasteful number, since it uses less digits than its factorization.

542447427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45809.

The product of its digits is 250880, while the sum is 39.

The square root of 542447427 is about 23290.5007889483. The cubic root of 542447427 is about 815.5536789943.

The spelling of 542447427 in words is "five hundred forty-two million, four hundred forty-seven thousand, four hundred twenty-seven".