4032945 has 72 divisors (see below), whose sum is σ = 8536320. Its totient is φ = 1753920.

The previous prime is 4032923. The next prime is 4032947. The reversal of 4032945 is 5492304.

It is not a de Polignac number, because 4032945 - 2⁵ = 4032913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4032947) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 68326 + ... + 68384.

It is an arithmetic number, because the mean of its divisors is an integer number (118560).

Almost surely, 2^4032945 is an apocalyptic number.

4032945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4032945 is an abundant number, since it is smaller than the sum of its proper divisors (4503375).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4032945 is a wasteful number, since it uses less digits than its factorization.

4032945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4032945 is about 2008.2193605281. The cubic root of 4032945 is about 159.1747218983.

The spelling of 4032945 in words is "four million, thirty-two thousand, nine hundred forty-five".