38729454 has 16 divisors (see below), whose sum is σ = 79552848. Its totient is φ = 12560832.

The previous prime is 38729443. The next prime is 38729473. The reversal of 38729454 is 45492783.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87007 + ... + 87450.

It is an arithmetic number, because the mean of its divisors is an integer number (4972053).

Almost surely, 2^38729454 is an apocalyptic number.

38729454 is an abundant number, since it is smaller than the sum of its proper divisors (40823394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38729454 is a wasteful number, since it uses less digits than its factorization.

38729454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174499.

The product of its digits is 241920, while the sum is 42.

The square root of 38729454 is about 6223.2992857487. The cubic root of 38729454 is about 338.3351541771.

The spelling of 38729454 in words is "thirty-eight million, seven hundred twenty-nine thousand, four hundred fifty-four".