42954645 has 32 divisors (see below), whose sum is σ = 71103744. Its totient is φ = 22131200.

The previous prime is 42954643. The next prime is 42954647. The reversal of 42954645 is 54645924.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42954643) and next prime (42954647).

It is not a de Polignac number, because 42954645 - 2¹ = 42954643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42954641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56065 + ... + 56825.

It is an arithmetic number, because the mean of its divisors is an integer number (2221992).

Almost surely, 2^42954645 is an apocalyptic number.

It is an amenable number.

42954645 is a deficient number, since it is larger than the sum of its proper divisors (28149099).

42954645 is a wasteful number, since it uses less digits than its factorization.

42954645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893.

The product of its digits is 172800, while the sum is 39.

The square root of 42954645 is about 6553.9793255701. The cubic root of 42954645 is about 350.2165870324.

The spelling of 42954645 in words is "forty-two million, nine hundred fifty-four thousand, six hundred forty-five".