38069640 has 96 divisors (see below), whose sum is σ = 141410880. Its totient is φ = 8701056.

The previous prime is 38069639. The next prime is 38069651. The reversal of 38069640 is 4696083.

38069640 is a `hidden beast` number, since 3 + 8 + 0 + 6 + 9 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 38069595 and 38069604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5034 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (1473030).

Almost surely, 2^38069640 is an apocalyptic number.

38069640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38069640 is an abundant number, since it is smaller than the sum of its proper divisors (103341240).

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

38069640 is a wasteful number, since it uses less digits than its factorization.

38069640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15131 (or 15124 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 38069640 is about 6170.0599672937. The cubic root of 38069640 is about 336.4027907583.

The spelling of 38069640 in words is "thirty-eight million, sixty-nine thousand, six hundred forty".