38387740 has 12 divisors (see below), whose sum is σ = 80614296. Its totient is φ = 15355088.

The previous prime is 38387693. The next prime is 38387779. The reversal of 38387740 is 4778383.

It is a junction number, because it is equal to n+sod(n) for n = 38387693 and 38387702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959674 + ... + 959713.

It is an arithmetic number, because the mean of its divisors is an integer number (6717858).

Almost surely, 2^38387740 is an apocalyptic number.

It is an amenable number.

38387740 is an abundant number, since it is smaller than the sum of its proper divisors (42226556).

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

38387740 is a wasteful number, since it uses less digits than its factorization.

38387740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919396 (or 1919394 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 38387740 is about 6195.7840504653. The cubic root of 38387740 is about 337.3371578390.

The spelling of 38387740 in words is "thirty-eight million, three hundred eighty-seven thousand, seven hundred forty".