38439946 has 16 divisors (see below), whose sum is σ = 61305984. Its totient is φ = 18036304.

The previous prime is 38439931. The next prime is 38439949. The reversal of 38439946 is 64993483.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 38439896 and 38439905.

It is not an unprimeable number, because it can be changed into a prime (38439949) 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, 5446 + ... + 10321.

It is an arithmetic number, because the mean of its divisors is an integer number (3831624).

Almost surely, 2^38439946 is an apocalyptic number.

38439946 is a deficient number, since it is larger than the sum of its proper divisors (22866038).

38439946 is a wasteful number, since it uses less digits than its factorization.

38439946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15845.

The product of its digits is 559872, while the sum is 46.

The square root of 38439946 is about 6199.9956451598. The cubic root of 38439946 is about 337.4900108612.

The spelling of 38439946 in words is "thirty-eight million, four hundred thirty-nine thousand, nine hundred forty-six".