1940860 has 24 divisors (see below), whose sum is σ = 4154976. Its totient is φ = 761280.

The previous prime is 1940849. The next prime is 1940881. The reversal of 1940860 is 680491.

1940860 = T₁₁₃₆ + T₁₁₃₇ + T₁₁₃₈.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145 + ... + 1975.

It is an arithmetic number, because the mean of its divisors is an integer number (173124).

2^1940860 is an apocalyptic number.

1940860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1940860 is the 1138-th centered triangular number.

It is an amenable number.

1940860 is an abundant number, since it is smaller than the sum of its proper divisors (2214116).

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

1940860 is a wasteful number, since it uses less digits than its factorization.

1940860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1940860 is about 1393.1475155202. The cubic root of 1940860 is about 124.7377970481.

The spelling of 1940860 in words is "one million, nine hundred forty thousand, eight hundred sixty".