1940598 has 56 divisors (see below), whose sum is σ = 4800456. Its totient is φ = 588060.

The previous prime is 1940597. The next prime is 1940599. The reversal of 1940598 is 8950491.

It is an interprime number because it is at equal distance from previous prime (1940597) and next prime (1940599).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940597) 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 27 ways as a sum of consecutive naturals, for example, 176413 + ... + 176423.

2^1940598 is an apocalyptic number.

1940598 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2400228).

1940598 is an abundant number, since it is smaller than the sum of its proper divisors (2859858).

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

1940598 is an frugal number, since it uses more digits than its factorization.

1940598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53 (or 16 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1940598 is about 1393.0534806676. The cubic root of 1940598 is about 124.7321839396.

It can be divided in two parts, 19405 and 98, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 1940598 in words is "one million, nine hundred forty thousand, five hundred ninety-eight".