542213388 has 36 divisors (see below), whose sum is σ = 1371359808. Its totient is φ = 180636960.

The previous prime is 542213387. The next prime is 542213401. The reversal of 542213388 is 883312245.

542213388 is a `hidden beast` number, since 54 + 221 + 3 + 388 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (542213383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90370 + ... + 96182.

It is an arithmetic number, because the mean of its divisors is an integer number (38093328).

Almost surely, 2^542213388 is an apocalyptic number.

It is an amenable number.

542213388 is an abundant number, since it is smaller than the sum of its proper divisors (829146420).

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

542213388 is a wasteful number, since it uses less digits than its factorization.

542213388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8414 (or 8409 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 542213388 is about 23285.4759023731. The cubic root of 542213388 is about 815.4363718815.

The spelling of 542213388 in words is "five hundred forty-two million, two hundred thirteen thousand, three hundred eighty-eight".