542551446 has 48 divisors (see below), whose sum is σ = 1239118608. Its totient is φ = 177876000.

The previous prime is 542551423. The next prime is 542551453. The reversal of 542551446 is 644155245.

It is a self number, because there is not a number n which added to its sum of digits gives 542551446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20496 + ... + 38796.

It is an arithmetic number, because the mean of its divisors is an integer number (25814971).

Almost surely, 2^542551446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542551446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619559304).

542551446 is an abundant number, since it is smaller than the sum of its proper divisors (696567162).

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

542551446 is a wasteful number, since it uses less digits than its factorization.

542551446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18379 (or 18367 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 542551446 is about 23292.7337596942. The cubic root of 542551446 is about 815.6058054936.

The spelling of 542551446 in words is "five hundred forty-two million, five hundred fifty-one thousand, four hundred forty-six".