1440868 has 36 divisors (see below), whose sum is σ = 2997820. Its totient is φ = 601920.

The previous prime is 1440853. The next prime is 1440877. The reversal of 1440868 is 8680441.

It can be written as a sum of positive squares in 2 ways, for example, as 813604 + 627264 = 902^2 + 792^2 .

It is a super-2 number, since 2×1440868² = 4152201186848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6178 + ... + 6406.

2^1440868 is an apocalyptic number.

It is an amenable number.

1440868 is an abundant number, since it is smaller than the sum of its proper divisors (1556952).

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

1440868 is a wasteful number, since it uses less digits than its factorization.

1440868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 1440868 is about 1200.3616121819. The cubic root of 1440868 is about 112.9470083326.

The spelling of 1440868 in words is "one million, four hundred forty thousand, eight hundred sixty-eight".