63402442 has 4 divisors (see below), whose sum is σ = 95103666. Its totient is φ = 31701220.

The previous prime is 63402433. The next prime is 63402463. The reversal of 63402442 is 24420436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 63218401 + 184041 = 7951^2 + 429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15850609 + ... + 15850612.

Almost surely, 2^63402442 is an apocalyptic number.

63402442 is a deficient number, since it is larger than the sum of its proper divisors (31701224).

63402442 is a wasteful number, since it uses less digits than its factorization.

63402442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31701223.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 63402442 is about 7962.5650389808. The cubic root of 63402442 is about 398.7511927586.

Adding to 63402442 its reverse (24420436), we get a palindrome (87822878).

The spelling of 63402442 in words is "sixty-three million, four hundred two thousand, four hundred forty-two".