3645078 has 16 divisors (see below), whose sum is σ = 7315056. Its totient is φ = 1210880.

The previous prime is 3645077. The next prime is 3645101. The reversal of 3645078 is 8705463.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645071) 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, 1258 + ... + 2978.

It is an arithmetic number, because the mean of its divisors is an integer number (457191).

Almost surely, 2^3645078 is an apocalyptic number.

3645078 is an abundant number, since it is smaller than the sum of its proper divisors (3669978).

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

3645078 is a wasteful number, since it uses less digits than its factorization.

3645078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 3645078 is about 1909.2087366236. The cubic root of 3645078 is about 153.8989329554.

The spelling of 3645078 in words is "three million, six hundred forty-five thousand, seventy-eight".