40449398026 has 8 divisors (see below), whose sum is σ = 60691781124. Its totient is φ = 20218804320.

The previous prime is 40449398009. The next prime is 40449398027. The reversal of 40449398026 is 62089394404.

40449398026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39622893025 + 826505001 = 199055^2 + 28749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40449398027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2938765 + ... + 2952496.

Almost surely, 2^40449398026 is an apocalyptic number.

40449398026 is a deficient number, since it is larger than the sum of its proper divisors (20242383098).

40449398026 is a wasteful number, since it uses less digits than its factorization.

40449398026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894696.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 40449398026 in words is "forty billion, four hundred forty-nine million, three hundred ninety-eight thousand, twenty-six".