42745082 has 4 divisors (see below), whose sum is σ = 64117626. Its totient is φ = 21372540.

The previous prime is 42745081. The next prime is 42745091. The reversal of 42745082 is 28054724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37075921 + 5669161 = 6089^2 + 2381^2 .

It is not an unprimeable number, because it can be changed into a prime (42745081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10686269 + ... + 10686272.

Almost surely, 2^42745082 is an apocalyptic number.

42745082 is a deficient number, since it is larger than the sum of its proper divisors (21372544).

42745082 is a wasteful number, since it uses less digits than its factorization.

42745082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21372543.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 42745082 is about 6537.9723156343. The cubic root of 42745082 is about 349.6461239582.

The spelling of 42745082 in words is "forty-two million, seven hundred forty-five thousand, eighty-two".