3145890 has 32 divisors (see below), whose sum is σ = 8237376. Its totient is φ = 762560.

The previous prime is 3145873. The next prime is 3145897. The reversal of 3145890 is 985413.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a d-powerful number, because it can be written as 3³ + 1 + 4¹⁰ + 5³ + 8⁷ + 9 + 0 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4437 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (257418).

Almost surely, 2^3145890 is an apocalyptic number.

3145890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3145890 is an abundant number, since it is smaller than the sum of its proper divisors (5091486).

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

3145890 is a wasteful number, since it uses less digits than its factorization.

3145890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9554.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 3145890 is about 1773.6656956710. The cubic root of 3145890 is about 146.5259382449.

The spelling of 3145890 in words is "three million, one hundred forty-five thousand, eight hundred ninety".