1798340 has 12 divisors (see below), whose sum is σ = 3776556. Its totient is φ = 719328.

The previous prime is 1798333. The next prime is 1798351. The reversal of 1798340 is 438971.

It can be written as a sum of positive squares in 2 ways, for example, as 1119364 + 678976 = 1058^2 + 824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1798297 and 1798306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44939 + ... + 44978.

It is an arithmetic number, because the mean of its divisors is an integer number (314713).

2^1798340 is an apocalyptic number.

1798340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1798340 is an abundant number, since it is smaller than the sum of its proper divisors (1978216).

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

1798340 is a wasteful number, since it uses less digits than its factorization.

1798340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89926 (or 89924 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1798340 is about 1341.0219983281. The cubic root of 1798340 is about 121.6066341314.

The spelling of 1798340 in words is "one million, seven hundred ninety-eight thousand, three hundred forty".