4078045 has 8 divisors (see below), whose sum is σ = 5181624. Its totient is φ = 3070464.

The previous prime is 4078043. The next prime is 4078073. The reversal of 4078045 is 5408704.

It can be written as a sum of positive squares in 4 ways, for example, as 2277081 + 1800964 = 1509^2 + 1342^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4078045 - 2¹ = 4078043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23904 + ... + 24073.

It is an arithmetic number, because the mean of its divisors is an integer number (647703).

Almost surely, 2^4078045 is an apocalyptic number.

It is an amenable number.

4078045 is a deficient number, since it is larger than the sum of its proper divisors (1103579).

4078045 is a wasteful number, since it uses less digits than its factorization.

4078045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47999.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4078045 is about 2019.4169950756. The cubic root of 4078045 is about 159.7658684949.

The spelling of 4078045 in words is "four million, seventy-eight thousand, forty-five".