40000044220442 has 4 divisors (see below), whose sum is σ = 60000066330666. Its totient is φ = 20000022110220.

The previous prime is 40000044220429. The next prime is 40000044220457. The reversal of 40000044220442 is 24402244000004.

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., 22712668539961 + 17287375680481 = 4765781^2 + 4157809^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000011055109 + ... + 10000011055112.

Almost surely, 2^{40000044220442} is an apocalyptic number.

40000044220442 is a deficient number, since it is larger than the sum of its proper divisors (20000022110224).

40000044220442 is a wasteful number, since it uses less digits than its factorization.

40000044220442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000022110223.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40000044220442 its reverse (24402244000004), we get a palindrome (64402288220446).

The spelling of 40000044220442 in words is "forty trillion, forty-four million, two hundred twenty thousand, four hundred forty-two".