637324042 has 16 divisors (see below), whose sum is σ = 981994752. Its totient is φ = 310071280.

The previous prime is 637324019. The next prime is 637324063. The reversal of 637324042 is 240423736.

It is a super-2 number, since 2×637324042² = 812363869022435528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 637323995 and 637324013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3334 + ... + 35857.

It is an arithmetic number, because the mean of its divisors is an integer number (61374672).

Almost surely, 2^637324042 is an apocalyptic number.

637324042 is a deficient number, since it is larger than the sum of its proper divisors (344670710).

637324042 is a wasteful number, since it uses less digits than its factorization.

637324042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39413.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 637324042 is about 25245.2776178041. The cubic root of 637324042 is about 860.5711196482.

Adding to 637324042 its reverse (240423736), we get a palindrome (877747778).

The spelling of 637324042 in words is "six hundred thirty-seven million, three hundred twenty-four thousand, forty-two".