612090 has 32 divisors (see below), whose sum is σ = 1632960. Its totient is φ = 163152.

The previous prime is 612083. The next prime is 612107. The reversal of 612090 is 90216.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 864 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2⁶¹²⁰⁹⁰ is an apocalyptic number.

612090 is an abundant number, since it is smaller than the sum of its proper divisors (1020870).

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

612090 is a wasteful number, since it uses less digits than its factorization.

612090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283 (or 2277 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 612090 is about 782.3618088838. The cubic root of 612090 is about 84.9060091390.

The spelling of 612090 in words is "six hundred twelve thousand, ninety".