43474945 has 32 divisors (see below), whose sum is σ = 58164480. Its totient is φ = 31046400.

The previous prime is 43474939. The next prime is 43474979. The reversal of 43474945 is 54947434.

It is not a de Polignac number, because 43474945 - 2⁵ = 43474913 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 43474898 and 43474907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220587 + ... + 220783.

It is an arithmetic number, because the mean of its divisors is an integer number (1817640).

It is a Proth number, since it is equal to 5307 ⋅ 2¹³ + 1 and 5307 < 2¹³.

Almost surely, 2^43474945 is an apocalyptic number.

It is an amenable number.

43474945 is a deficient number, since it is larger than the sum of its proper divisors (14689535).

43474945 is a wasteful number, since it uses less digits than its factorization.

43474945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its digits is 241920, while the sum is 40.

The square root of 43474945 is about 6593.5532909047. The cubic root of 43474945 is about 351.6249475702.

The spelling of 43474945 in words is "forty-three million, four hundred seventy-four thousand, nine hundred forty-five".