42745356 has 36 divisors (see below), whose sum is σ = 108249232. Its totient is φ = 14222304.

The previous prime is 42745343. The next prime is 42745357. The reversal of 42745356 is 65354724.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42745356.

It is not an unprimeable number, because it can be changed into a prime (42745357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37710 + ... + 38826.

Almost surely, 2^42745356 is an apocalyptic number.

It is an amenable number.

42745356 is an abundant number, since it is smaller than the sum of its proper divisors (65503876).

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

42745356 is a wasteful number, since it uses less digits than its factorization.

42745356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2185 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 42745356 is about 6537.9932701097. The cubic root of 42745356 is about 349.6468710448.

The spelling of 42745356 in words is "forty-two million, seven hundred forty-five thousand, three hundred fifty-six".