38300040 has 80 divisors (see below), whose sum is σ = 128741580. Its totient is φ = 10212480.

The previous prime is 38300033. The next prime is 38300051. The reversal of 38300040 is 4000383.

It can be written as a sum of positive squares in 2 ways, for example, as 35497764 + 2802276 = 5958^2 + 1674^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 38299986 and 38300022.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2671 + ... + 9150.

Almost surely, 2^38300040 is an apocalyptic number.

38300040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38300040 is an abundant number, since it is smaller than the sum of its proper divisors (90441540).

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

38300040 is a wasteful number, since it uses less digits than its factorization.

38300040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11844 (or 11831 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 38300040 is about 6188.7026104023. The cubic root of 38300040 is about 337.0800703176.

The spelling of 38300040 in words is "thirty-eight million, three hundred thousand, forty".