38355940 has 24 divisors (see below), whose sum is σ = 92054592. Its totient is φ = 13150560.

The previous prime is 38355917. The next prime is 38355953. The reversal of 38355940 is 4955383.

It is a self number, because there is not a number n which added to its sum of digits gives 38355940.

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 7 ways as a sum of consecutive naturals, for example, 136846 + ... + 137125.

It is an arithmetic number, because the mean of its divisors is an integer number (3835608).

Almost surely, 2^38355940 is an apocalyptic number.

It is an amenable number.

38355940 is an abundant number, since it is smaller than the sum of its proper divisors (53698652).

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

38355940 is a wasteful number, since it uses less digits than its factorization.

38355940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273987 (or 273985 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 38355940 is about 6193.2172576134. The cubic root of 38355940 is about 337.2439832549.

The spelling of 38355940 in words is "thirty-eight million, three hundred fifty-five thousand, nine hundred forty".