1490868 has 18 divisors (see below), whose sum is σ = 3768674. Its totient is φ = 496944.

The previous prime is 1490843. The next prime is 1490869. The reversal of 1490868 is 8680941.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1411344 + 79524 = 1188^2 + 282^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 41413 = 1490868 / (1 + 4 + 9 + 0 + 8 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20671 + ... + 20742.

2^1490868 is an apocalyptic number.

1490868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1490868 is an abundant number, since it is smaller than the sum of its proper divisors (2277806).

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

1490868 is a wasteful number, since it uses less digits than its factorization.

1490868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41423 (or 41418 counting only the distinct ones).

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

The square root of 1490868 is about 1221.0110564610. The cubic root of 1490868 is about 114.2386505619.

The spelling of 1490868 in words is "one million, four hundred ninety thousand, eight hundred sixty-eight".