42930545 has 16 divisors (see below), whose sum is σ = 60469248. Its totient is φ = 28641600.

The previous prime is 42930541. The next prime is 42930553. The reversal of 42930545 is 54503924.

It is a happy number.

It is not a de Polignac number, because 42930545 - 2² = 42930541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42930541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15281 + ... + 17870.

It is an arithmetic number, because the mean of its divisors is an integer number (3779328).

Almost surely, 2^42930545 is an apocalyptic number.

It is an amenable number.

42930545 is a deficient number, since it is larger than the sum of its proper divisors (17538703).

42930545 is a wasteful number, since it uses less digits than its factorization.

42930545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33200.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 42930545 is about 6552.1404899468. The cubic root of 42930545 is about 350.1510776350.

The spelling of 42930545 in words is "forty-two million, nine hundred thirty thousand, five hundred forty-five".