542420440 has 32 divisors (see below), whose sum is σ = 1224784080. Its totient is φ = 216196992.

The previous prime is 542420413. The next prime is 542420449. The reversal of 542420440 is 44024245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542420449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12639 + ... + 35278.

Almost surely, 2^542420440 is an apocalyptic number.

It is an amenable number.

542420440 is an abundant number, since it is smaller than the sum of its proper divisors (682363640).

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

542420440 is a wasteful number, since it uses less digits than its factorization.

542420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48211 (or 48207 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 542420440 is about 23289.9214253720. The cubic root of 542420440 is about 815.5401540510.

Adding to 542420440 its reverse (44024245), we get a palindrome (586444685).

The spelling of 542420440 in words is "five hundred forty-two million, four hundred twenty thousand, four hundred forty".