63405342 has 320 divisors, whose sum is σ = 210760704. Its totient is φ = 13685760.

The previous prime is 63405313. The next prime is 63405347. The reversal of 63405342 is 24350436.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63405347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2756743 + ... + 2756765.

Almost surely, 2^63405342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63405342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105380352).

63405342 is an abundant number, since it is smaller than the sum of its proper divisors (147355362).

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

63405342 is a wasteful number, since it uses less digits than its factorization.

63405342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 63405342 is about 7962.7471390218. The cubic root of 63405342 is about 398.7572722343.

Adding to 63405342 its reverse (24350436), we get a palindrome (87755778).

The spelling of 63405342 in words is "sixty-three million, four hundred five thousand, three hundred forty-two".