1943481 has 8 divisors (see below), whose sum is σ = 2612224. Its totient is φ = 1285200.

The previous prime is 1943467. The next prime is 1943489. The reversal of 1943481 is 1843491.

It is a happy number.

1943481 is nontrivially palindromic in base 9.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1943481 - 2⁷ = 1943353 is a prime.

It is a super-2 number, since 2×1943481² = 7554236794722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1943489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170 + ... + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (326528).

2^1943481 is an apocalyptic number.

It is an amenable number.

1943481 is a deficient number, since it is larger than the sum of its proper divisors (668743).

1943481 is a wasteful number, since it uses less digits than its factorization.

1943481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its digits is 3456, while the sum is 30.

The square root of 1943481 is about 1394.0878738444. The cubic root of 1943481 is about 124.7939217742.

The spelling of 1943481 in words is "one million, nine hundred forty-three thousand, four hundred eighty-one".