542218040 has 64 divisors (see below), whose sum is σ = 1501536960. Its totient is φ = 171601920.

The previous prime is 542218007. The next prime is 542218057. The reversal of 542218040 is 40812245.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70841 + ... + 78120.

It is an arithmetic number, because the mean of its divisors is an integer number (23461515).

Almost surely, 2^542218040 is an apocalyptic number.

It is an amenable number.

542218040 is an abundant number, since it is smaller than the sum of its proper divisors (959318920).

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

542218040 is a wasteful number, since it uses less digits than its factorization.

542218040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148992 (or 148988 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 542218040 is about 23285.5757927520. The cubic root of 542218040 is about 815.4387039272.

The spelling of 542218040 in words is "five hundred forty-two million, two hundred eighteen thousand, forty".