1442981 has 4 divisors (see below), whose sum is σ = 1446432. Its totient is φ = 1439532.

The previous prime is 1442971. The next prime is 1442983. The reversal of 1442981 is 1892441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442981 is a prime.

It is a super-2 number, since 2×1442981² = 4164388332722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995 + ... + 1968.

It is an arithmetic number, because the mean of its divisors is an integer number (361608).

2^1442981 is an apocalyptic number.

It is an amenable number.

1442981 is a deficient number, since it is larger than the sum of its proper divisors (3451).

1442981 is an equidigital number, since it uses as much as digits as its factorization.

1442981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450.

The product of its digits is 2304, while the sum is 29.

The square root of 1442981 is about 1201.2414411766. The cubic root of 1442981 is about 113.0021927682.

It can be divided in two parts, 144 and 2981, that added together give a 5-th power (3125 = 5⁵).

The spelling of 1442981 in words is "one million, four hundred forty-two thousand, nine hundred eighty-one".