1940398 has 8 divisors (see below), whose sum is σ = 2947680. Its totient is φ = 957840.

The previous prime is 1940381. The next prime is 1940399. The reversal of 1940398 is 8930491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5983 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (368460).

2^1940398 is an apocalyptic number.

1940398 is a deficient number, since it is larger than the sum of its proper divisors (1007282).

1940398 is a wasteful number, since it uses less digits than its factorization.

1940398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12362.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1940398 is about 1392.9816940649. The cubic root of 1940398 is about 124.7278987839.

The spelling of 1940398 in words is "one million, nine hundred forty thousand, three hundred ninety-eight".