40043433154 has 4 divisors (see below), whose sum is σ = 60065149734. Its totient is φ = 20021716576.

The previous prime is 40043433091. The next prime is 40043433191. The reversal of 40043433154 is 45133434004.

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., 39272537929 + 770895225 = 198173^2 + 27765^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010858287 + ... + 10010858290.

Almost surely, 2^40043433154 is an apocalyptic number.

40043433154 is a deficient number, since it is larger than the sum of its proper divisors (20021716580).

40043433154 is a wasteful number, since it uses less digits than its factorization.

40043433154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20021716579.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 40043433154 its reverse (45133434004), we get a palindrome (85176867158).

The spelling of 40043433154 in words is "forty billion, forty-three million, four hundred thirty-three thousand, one hundred fifty-four".