1930140 has 36 divisors (see below), whose sum is σ = 5855304. Its totient is φ = 514656.

The previous prime is 1930139. The next prime is 1930147. The reversal of 1930140 is 410391.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5182 + ... + 5541.

2^1930140 is an apocalyptic number.

1930140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1930140 is an abundant number, since it is smaller than the sum of its proper divisors (3925164).

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

1930140 is a wasteful number, since it uses less digits than its factorization.

1930140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738 (or 10733 counting only the distinct ones).

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

The square root of 1930140 is about 1389.2947851338. The cubic root of 1930140 is about 124.5077171391.

The spelling of 1930140 in words is "one million, nine hundred thirty thousand, one hundred forty".