1672398 has 48 divisors (see below), whose sum is σ = 4464096. Its totient is φ = 440640.

The previous prime is 1672393. The next prime is 1672421. The reversal of 1672398 is 8932761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1128 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (93002).

2^1672398 is an apocalyptic number.

1672398 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 1672398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2232048).

1672398 is an abundant number, since it is smaller than the sum of its proper divisors (2791698).

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

1672398 is a wasteful number, since it uses less digits than its factorization.

1672398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1046 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1672398 is about 1293.2122795582. The cubic root of 1672398 is about 118.6988596044.

The spelling of 1672398 in words is "one million, six hundred seventy-two thousand, three hundred ninety-eight".