63021942 has 32 divisors (see below), whose sum is σ = 142147200. Its totient is φ = 20692584.

The previous prime is 63021923. The next prime is 63021949. The reversal of 63021942 is 24912036.

63021942 is a `hidden beast` number, since 630 + 21 + 9 + 4 + 2 = 666.

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 (63021949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5092 + ... + 12327.

It is an arithmetic number, because the mean of its divisors is an integer number (4442100).

Almost surely, 2^63021942 is an apocalyptic number.

63021942 is an abundant number, since it is smaller than the sum of its proper divisors (79125258).

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

63021942 is a wasteful number, since it uses less digits than its factorization.

63021942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17497 (or 17491 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 63021942 is about 7938.6360289410. The cubic root of 63021942 is about 397.9519103871.

Adding to 63021942 its reverse (24912036), we get a palindrome (87933978).

The spelling of 63021942 in words is "sixty-three million, twenty-one thousand, nine hundred forty-two".