1870140 has 48 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 490560.

The previous prime is 1870139. The next prime is 1870147. The reversal of 1870140 is 410781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1870147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4041 + ... + 4479.

It is an arithmetic number, because the mean of its divisors is an integer number (110880).

2^1870140 is an apocalyptic number.

1870140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1870140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661120).

1870140 is an abundant number, since it is smaller than the sum of its proper divisors (3452100).

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

1870140 is a wasteful number, since it uses less digits than its factorization.

1870140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1870140 is about 1367.5306212294. The cubic root of 1870140 is about 123.2039711713.

The spelling of 1870140 in words is "one million, eight hundred seventy thousand, one hundred forty".