42945272 has 16 divisors (see below), whose sum is σ = 80656560. Its totient is φ = 21436864.

The previous prime is 42945251. The next prime is 42945277. The reversal of 42945272 is 27254924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42945277) 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, 1028 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (5041035).

Almost surely, 2^42945272 is an apocalyptic number.

It is an amenable number.

42945272 is a deficient number, since it is larger than the sum of its proper divisors (37711288).

42945272 is a wasteful number, since it uses less digits than its factorization.

42945272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950 (or 8946 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 42945272 is about 6553.2642247967. The cubic root of 42945272 is about 350.1911119539.

The spelling of 42945272 in words is "forty-two million, nine hundred forty-five thousand, two hundred seventy-two".