3642635042 has 8 divisors (see below), whose sum is σ = 5464565532. Its totient is φ = 1821113200.

The previous prime is 3642635023. The next prime is 3642635047. The reversal of 3642635042 is 2405362463.

It can be written as a sum of positive squares in 2 ways, for example, as 3348821161 + 293813881 = 57869^2 + 17141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3642634993 and 3642635011.

It is not an unprimeable number, because it can be changed into a prime (3642635047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78809 + ... + 116172.

Almost surely, 2^3642635042 is an apocalyptic number.

3642635042 is a deficient number, since it is larger than the sum of its proper divisors (1821930490).

3642635042 is a wasteful number, since it uses less digits than its factorization.

3642635042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204324.

The product of its (nonzero) digits is 103680, while the sum is 35.

The square root of 3642635042 is about 60354.2462632084. The cubic root of 3642635042 is about 1538.6454387393.

The spelling of 3642635042 in words is "three billion, six hundred forty-two million, six hundred thirty-five thousand, forty-two".