40245380834 has 4 divisors (see below), whose sum is σ = 60368071254. Its totient is φ = 20122690416.

The previous prime is 40245380761. The next prime is 40245380839. The reversal of 40245380834 is 43808354204.

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., 20772015625 + 19473365209 = 144125^2 + 139547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40245380791 and 40245380800.

It is not an unprimeable number, because it can be changed into a prime (40245380839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061345207 + ... + 10061345210.

Almost surely, 2^40245380834 is an apocalyptic number.

40245380834 is a deficient number, since it is larger than the sum of its proper divisors (20122690420).

40245380834 is a wasteful number, since it uses less digits than its factorization.

40245380834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20122690419.

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 40245380834 in words is "forty billion, two hundred forty-five million, three hundred eighty thousand, eight hundred thirty-four".