38190642 has 16 divisors (see below), whose sum is σ = 87292992. Its totient is φ = 10911600.

The previous prime is 38190631. The next prime is 38190643. The reversal of 38190642 is 24609183.

38190642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38190643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454609 + ... + 454692.

It is an arithmetic number, because the mean of its divisors is an integer number (5455812).

Almost surely, 2^38190642 is an apocalyptic number.

38190642 is an abundant number, since it is smaller than the sum of its proper divisors (49102350).

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

38190642 is a wasteful number, since it uses less digits than its factorization.

38190642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909313.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 38190642 is about 6179.8577653535. The cubic root of 38190642 is about 336.7588256453.

The spelling of 38190642 in words is "thirty-eight million, one hundred ninety thousand, six hundred forty-two".