38474642 has 8 divisors (see below), whose sum is σ = 57815100. Its totient is φ = 19202944.

The previous prime is 38474641. The next prime is 38474647. The reversal of 38474642 is 24647483.

It can be written as a sum of positive squares in 2 ways, for example, as 37589161 + 885481 = 6131^2 + 941^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 38474596 and 38474605.

It is not an unprimeable number, because it can be changed into a prime (38474641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15767 + ... + 18042.

Almost surely, 2^38474642 is an apocalyptic number.

38474642 is a deficient number, since it is larger than the sum of its proper divisors (19340458).

38474642 is a wasteful number, since it uses less digits than its factorization.

38474642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34380.

The product of its digits is 129024, while the sum is 38.

The square root of 38474642 is about 6202.7930805404. The cubic root of 38474642 is about 337.5915201276.

The spelling of 38474642 in words is "thirty-eight million, four hundred seventy-four thousand, six hundred forty-two".