7478045 has 8 divisors (see below), whose sum is σ = 9501624. Its totient is φ = 5630464.

The previous prime is 7478017. The next prime is 7478069. The reversal of 7478045 is 5408747.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3833764 + 3644281 = 1958^2 + 1909^2 .

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 7478045 - 2¹⁰ = 7477021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7477996 and 7478014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43904 + ... + 44073.

It is an arithmetic number, because the mean of its divisors is an integer number (1187703).

Almost surely, 2^7478045 is an apocalyptic number.

It is an amenable number.

7478045 is a deficient number, since it is larger than the sum of its proper divisors (2023579).

7478045 is a wasteful number, since it uses less digits than its factorization.

7478045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87999.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 7478045 is about 2734.6014334817. The cubic root of 7478045 is about 195.5521933368.

The spelling of 7478045 in words is "seven million, four hundred seventy-eight thousand, forty-five".