38220783 has 16 divisors (see below), whose sum is σ = 51827040. Its totient is φ = 25051136.

The previous prime is 38220773. The next prime is 38220803. The reversal of 38220783 is 38702283.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 38220783 - 2⁸ = 38220527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38220713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68341 + ... + 68897.

It is an arithmetic number, because the mean of its divisors is an integer number (3239190).

Almost surely, 2^38220783 is an apocalyptic number.

38220783 is a deficient number, since it is larger than the sum of its proper divisors (13606257).

38220783 is a wasteful number, since it uses less digits than its factorization.

38220783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 38220783 is about 6182.2959327421. The cubic root of 38220783 is about 336.8473951493.

The spelling of 38220783 in words is "thirty-eight million, two hundred twenty thousand, seven hundred eighty-three".