40623434 has 4 divisors (see below), whose sum is σ = 60935154. Its totient is φ = 20311716.

The previous prime is 40623419. The next prime is 40623467. The reversal of 40623434 is 43432604.

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., 38477209 + 2146225 = 6203^2 + 1465^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155857 + ... + 10155860.

Almost surely, 2^40623434 is an apocalyptic number.

40623434 is a deficient number, since it is larger than the sum of its proper divisors (20311720).

40623434 is a wasteful number, since it uses less digits than its factorization.

40623434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20311719.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 40623434 is about 6373.6515436600. The cubic root of 40623434 is about 343.7627995675.

The spelling of 40623434 in words is "forty million, six hundred twenty-three thousand, four hundred thirty-four".