29990226023 has 4 divisors (see below), whose sum is σ = 30096953088. Its totient is φ = 29883498960.

The previous prime is 29990226011. The next prime is 29990226067. The reversal of 29990226023 is 32062209992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29990226023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29990226073) 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, 53363111 + ... + 53363672.

It is an arithmetic number, because the mean of its divisors is an integer number (7524238272).

Almost surely, 2^29990226023 is an apocalyptic number.

29990226023 is a deficient number, since it is larger than the sum of its proper divisors (106727065).

29990226023 is a wasteful number, since it uses less digits than its factorization.

29990226023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106727064.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 29990226023 in words is "twenty-nine billion, nine hundred ninety million, two hundred twenty-six thousand, twenty-three".