38472642 has 24 divisors (see below), whose sum is σ = 89770044. Its totient is φ = 11837664.

The previous prime is 38472613. The next prime is 38472667. The reversal of 38472642 is 24627483.

38472642 is a `hidden beast` number, since 3 + 8 + 4 + 7 + 2 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38303721 + 168921 = 6189^2 + 411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38472597 and 38472606.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 81973 + ... + 82440.

Almost surely, 2^38472642 is an apocalyptic number.

38472642 is an abundant number, since it is smaller than the sum of its proper divisors (51297402).

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

38472642 is a wasteful number, since it uses less digits than its factorization.

38472642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164434 (or 164431 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 38472642 is about 6202.6318607507. The cubic root of 38472642 is about 337.5856704328.

The spelling of 38472642 in words is "thirty-eight million, four hundred seventy-two thousand, six hundred forty-two".