373890 has 48 divisors (see below), whose sum is σ = 995904. Its totient is φ = 89760.

The previous prime is 373861. The next prime is 373903. The reversal of 373890 is 98373.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

373890 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3579 + ... + 3681.

It is an arithmetic number, because the mean of its divisors is an integer number (20748).

2³⁷³⁸⁹⁰ is an apocalyptic number.

373890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 373890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497952).

373890 is an abundant number, since it is smaller than the sum of its proper divisors (622014).

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

373890 is a wasteful number, since it uses less digits than its factorization.

373890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 373890 is about 611.4654528262. The cubic root of 373890 is about 72.0412572186.

It can be divided in two parts, 3738 and 90, that added together give a triangular number (3828 = T₈₇).

The spelling of 373890 in words is "three hundred seventy-three thousand, eight hundred ninety".