1942281 has 24 divisors (see below), whose sum is σ = 3197376. Its totient is φ = 1124640.

The previous prime is 1942273. The next prime is 1942307. The reversal of 1942281 is 1822491.

It is not a de Polignac number, because 1942281 - 2³ = 1942273 is a prime.

It is a super-2 number, since 2×1942281² = 7544910965922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1942201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1851 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (133224).

2^1942281 is an apocalyptic number.

1942281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1942281 is a deficient number, since it is larger than the sum of its proper divisors (1255095).

1942281 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (1942280) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (893).

1942281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 890 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1942281 is about 1393.6574184497. The cubic root of 1942281 is about 124.7682318672.

It can be divided in two parts, 19422 and 81, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 1942281 in words is "one million, nine hundred forty-two thousand, two hundred eighty-one".