40353230642 has 8 divisors (see below), whose sum is σ = 60573935916. Its totient is φ = 20161918672.

The previous prime is 40353230629. The next prime is 40353230651. The reversal of 40353230642 is 24603235304.

It can be written as a sum of positive squares in 2 ways, for example, as 35366187481 + 4987043161 = 188059^2 + 70619^2 .

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 = 40353230599 and 40353230608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7344893 + ... + 7350384.

Almost surely, 2^40353230642 is an apocalyptic number.

40353230642 is a deficient number, since it is larger than the sum of its proper divisors (20220705274).

40353230642 is a wasteful number, since it uses less digits than its factorization.

40353230642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14696652.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 40353230642 its reverse (24603235304), we get a palindrome (64956465946).

The spelling of 40353230642 in words is "forty billion, three hundred fifty-three million, two hundred thirty thousand, six hundred forty-two".