42945670 has 8 divisors (see below), whose sum is σ = 77302224. Its totient is φ = 17178264.

The previous prime is 42945667. The next prime is 42945677. The reversal of 42945670 is 7654924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42945677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2147274 + ... + 2147293.

It is an arithmetic number, because the mean of its divisors is an integer number (9662778).

Almost surely, 2^42945670 is an apocalyptic number.

42945670 is a deficient number, since it is larger than the sum of its proper divisors (34356554).

42945670 is a wasteful number, since it uses less digits than its factorization.

42945670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294574.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 42945670 is about 6553.2945912724. The cubic root of 42945670 is about 350.1921937620.

The spelling of 42945670 in words is "forty-two million, nine hundred forty-five thousand, six hundred seventy".