1825740 has 180 divisors, whose sum is σ = 6952176. Its totient is φ = 399168.

The previous prime is 1825739. The next prime is 1825757. The reversal of 1825740 is 475281.

It is a tau number, because it is divible by the number of its divisors (180).

It is a super-4 number, since 4×1825740⁴ (a number of 26 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 79369 + ... + 79391.

2^1825740 is an apocalyptic number.

1825740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1825740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3476088).

1825740 is an abundant number, since it is smaller than the sum of its proper divisors (5126436).

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

1825740 is a wasteful number, since it uses less digits than its factorization.

1825740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1825740 is about 1351.1994671402. The cubic root of 1825740 is about 122.2211343644.

The spelling of 1825740 in words is "one million, eight hundred twenty-five thousand, seven hundred forty".