40304735642 has 4 divisors (see below), whose sum is σ = 60457103466. Its totient is φ = 20152367820.

The previous prime is 40304735641. The next prime is 40304735677. The reversal of 40304735642 is 24653740304.

40304735642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 35853043801 + 4451691841 = 189349^2 + 66721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40304735596 and 40304735605.

It is not an unprimeable number, because it can be changed into a prime (40304735641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076183909 + ... + 10076183912.

Almost surely, 2^40304735642 is an apocalyptic number.

40304735642 is a deficient number, since it is larger than the sum of its proper divisors (20152367824).

40304735642 is a wasteful number, since it uses less digits than its factorization.

40304735642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20152367823.

The product of its (nonzero) digits is 241920, while the sum is 38.

The spelling of 40304735642 in words is "forty billion, three hundred four million, seven hundred thirty-five thousand, six hundred forty-two".