1892240 has 80 divisors (see below), whose sum is σ = 5237760. Its totient is φ = 622080.

The previous prime is 1892239. The next prime is 1892249. The reversal of 1892240 is 422981.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1892249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17306 + ... + 17414.

It is an arithmetic number, because the mean of its divisors is an integer number (65472).

2^1892240 is an apocalyptic number.

1892240 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 1892240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2618880).

1892240 is an abundant number, since it is smaller than the sum of its proper divisors (3345520).

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

1892240 is a wasteful number, since it uses less digits than its factorization.

1892240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1892240 is about 1375.5871473665. The cubic root of 1892240 is about 123.6873845730.

Multiplying 1892240 by its sum of digits (26), we get a triangular number (49198240 = T₉₉₁₉).

The spelling of 1892240 in words is "one million, eight hundred ninety-two thousand, two hundred forty".