42755392 has 28 divisors (see below), whose sum is σ = 85052916. Its totient is φ = 21324800.

The previous prime is 42755351. The next prime is 42755407. The reversal of 42755392 is 29355724.

It can be written as a sum of positive squares in 2 ways, for example, as 28132416 + 14622976 = 5304^2 + 3824^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44388 + ... + 45340.

Almost surely, 2^42755392 is an apocalyptic number.

It is an amenable number.

42755392 is a deficient number, since it is larger than the sum of its proper divisors (42297524).

42755392 is an equidigital number, since it uses as much as digits as its factorization.

42755392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1656 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 42755392 is about 6538.7607388556. The cubic root of 42755392 is about 349.6742329366.

The spelling of 42755392 in words is "forty-two million, seven hundred fifty-five thousand, three hundred ninety-two".