38772429 has 8 divisors (see below), whose sum is σ = 52957632. Its totient is φ = 25217760.

The previous prime is 38772401. The next prime is 38772439. The reversal of 38772429 is 92427783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38772429 - 2⁷ = 38772301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38772439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157489 + ... + 157734.

It is an arithmetic number, because the mean of its divisors is an integer number (6619704).

Almost surely, 2^38772429 is an apocalyptic number.

It is an amenable number.

38772429 is a deficient number, since it is larger than the sum of its proper divisors (14185203).

38772429 is a wasteful number, since it uses less digits than its factorization.

38772429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315267.

The product of its digits is 169344, while the sum is 42.

The square root of 38772429 is about 6226.7510790138. The cubic root of 38772429 is about 338.4602491382.

The spelling of 38772429 in words is "thirty-eight million, seven hundred seventy-two thousand, four hundred twenty-nine".