23429540434 has 4 divisors (see below), whose sum is σ = 35144310654. Its totient is φ = 11714770216.

The previous prime is 23429540429. The next prime is 23429540503. The reversal of 23429540434 is 43404592432.

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., 13746390025 + 9683150409 = 117245^2 + 98403^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5857385107 + ... + 5857385110.

Almost surely, 2^23429540434 is an apocalyptic number.

23429540434 is a deficient number, since it is larger than the sum of its proper divisors (11714770220).

23429540434 is a wasteful number, since it uses less digits than its factorization.

23429540434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11714770219.

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 23429540434 in words is "twenty-three billion, four hundred twenty-nine million, five hundred forty thousand, four hundred thirty-four".