1672290 has 48 divisors (see below), whose sum is σ = 4607928. Its totient is φ = 419328.

The previous prime is 1672271. The next prime is 1672301. The reversal of 1672290 is 922761.

1672290 = T₈₅ + T₈₆ + ... + T₂₁₉.

It can be written as a sum of positive squares in 4 ways, for example, as 1671849 + 441 = 1293^2 + 21^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 984 + ... + 2076.

2^1672290 is an apocalyptic number.

1672290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1672290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2303964).

1672290 is an abundant number, since it is smaller than the sum of its proper divisors (2935638).

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

1672290 is a wasteful number, since it uses less digits than its factorization.

1672290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1672290 is about 1293.1705223983. The cubic root of 1672290 is about 118.6963044405.

The spelling of 1672290 in words is "one million, six hundred seventy-two thousand, two hundred ninety".