38447690229 has 64 divisors (see below), whose sum is σ = 65042369280. Its totient is φ = 22236456960.

The previous prime is 38447690207. The next prime is 38447690243. The reversal of 38447690229 is 92209674483.

38447690229 is a `hidden beast` number, since 3 + 84 + 476 + 90 + 2 + 2 + 9 = 666.

It is not a de Polignac number, because 38447690229 - 2⁷ = 38447690101 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38447690929) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4536654 + ... + 4545120.

It is an arithmetic number, because the mean of its divisors is an integer number (1016287020).

Almost surely, 2^38447690229 is an apocalyptic number.

38447690229 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38447690229 is a deficient number, since it is larger than the sum of its proper divisors (26594679051).

38447690229 is a wasteful number, since it uses less digits than its factorization.

38447690229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267 (or 9261 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 38447690229 in words is "thirty-eight billion, four hundred forty-seven million, six hundred ninety thousand, two hundred twenty-nine".