2015436442 has 4 divisors (see below), whose sum is σ = 3023154666. Its totient is φ = 1007718220.

The previous prime is 2015436427. The next prime is 2015436443. The reversal of 2015436442 is 2446345102.

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., 1768286601 + 247149841 = 42051^2 + 15721^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2015436443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503859109 + ... + 503859112.

Almost surely, 2^2015436442 is an apocalyptic number.

2015436442 is a deficient number, since it is larger than the sum of its proper divisors (1007718224).

2015436442 is a wasteful number, since it uses less digits than its factorization.

2015436442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007718223.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 2015436442 is about 44893.6124855196. The cubic root of 2015436442 is about 1263.1541957640.

The spelling of 2015436442 in words is "two billion, fifteen million, four hundred thirty-six thousand, four hundred forty-two".