1890468 has 36 divisors (see below), whose sum is σ = 5061420. Its totient is φ = 592896.

The previous prime is 1890467. The next prime is 1890479. The reversal of 1890468 is 8640981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1617984 + 272484 = 1272^2 + 522^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1890467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 933 + ... + 2156.

It is an arithmetic number, because the mean of its divisors is an integer number (140595).

2^1890468 is an apocalyptic number.

1890468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1890468 is an abundant number, since it is smaller than the sum of its proper divisors (3170952).

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

1890468 is a wasteful number, since it uses less digits than its factorization.

1890468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116 (or 3111 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1890468 is about 1374.9429079056. The cubic root of 1890468 is about 123.6487632395.

The spelling of 1890468 in words is "one million, eight hundred ninety thousand, four hundred sixty-eight".