38277642 has 32 divisors (see below), whose sum is σ = 87296832. Its totient is φ = 11084544.

The previous prime is 38277619. The next prime is 38277643. The reversal of 38277642 is 24677283.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 38277642.

It is not an unprimeable number, because it can be changed into a prime (38277643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13108 + ... + 15759.

It is an arithmetic number, because the mean of its divisors is an integer number (2728026).

Almost surely, 2^38277642 is an apocalyptic number.

38277642 is an abundant number, since it is smaller than the sum of its proper divisors (49019190).

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

38277642 is a wasteful number, since it uses less digits than its factorization.

38277642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28902.

The product of its digits is 112896, while the sum is 39.

The square root of 38277642 is about 6186.8927580814. The cubic root of 38277642 is about 337.0143489621.

The spelling of 38277642 in words is "thirty-eight million, two hundred seventy-seven thousand, six hundred forty-two".