38490770 has 32 divisors (see below), whose sum is σ = 73414080. Its totient is φ = 14489280.

The previous prime is 38490769. The next prime is 38490811. The reversal of 38490770 is 7709483.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 15 ways as a sum of consecutive naturals, for example, 32285 + ... + 33455.

It is an arithmetic number, because the mean of its divisors is an integer number (2294190).

Almost surely, 2^38490770 is an apocalyptic number.

38490770 is a deficient number, since it is larger than the sum of its proper divisors (34923310).

38490770 is a wasteful number, since it uses less digits than its factorization.

38490770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 38490770 is about 6204.0930038161. The cubic root of 38490770 is about 337.6386846595.

The spelling of 38490770 in words is "thirty-eight million, four hundred ninety thousand, seven hundred seventy".