38733890 has 16 divisors (see below), whose sum is σ = 75084408. Its totient is φ = 14301696.

The previous prime is 38733887. The next prime is 38733899. The reversal of 38733890 is 9833783.

It can be written as a sum of positive squares in 4 ways, for example, as 23980609 + 14753281 = 4897^2 + 3841^2 .

It is not an unprimeable number, because it can be changed into a prime (38733899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148847 + ... + 149106.

Almost surely, 2^38733890 is an apocalyptic number.

38733890 is a deficient number, since it is larger than the sum of its proper divisors (36350518).

38733890 is a wasteful number, since it uses less digits than its factorization.

38733890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297973.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 38733890 is about 6223.6556781364. The cubic root of 38733890 is about 338.3480711115.

The spelling of 38733890 in words is "thirty-eight million, seven hundred thirty-three thousand, eight hundred ninety".