40306672242 has 24 divisors (see below), whose sum is σ = 87353939244. Its totient is φ = 13432047264.

The previous prime is 40306672193. The next prime is 40306672249. The reversal of 40306672242 is 24227660304.

40306672242 is a `hidden beast` number, since 40 + 306 + 6 + 72 + 242 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23305380921 + 17001291321 = 152661^2 + 130389^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40306672197 and 40306672206.

It is not an unprimeable number, because it can be changed into a prime (40306672249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221233 + ... + 359940.

Almost surely, 2^40306672242 is an apocalyptic number.

40306672242 is an abundant number, since it is smaller than the sum of its proper divisors (47047267002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40306672242 is a wasteful number, since it uses less digits than its factorization.

40306672242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585034 (or 585031 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 40306672242 in words is "forty billion, three hundred six million, six hundred seventy-two thousand, two hundred forty-two".