3742281 has 20 divisors (see below), whose sum is σ = 5715072. Its totient is φ = 2439288.

The previous prime is 3742279. The next prime is 3742283. The reversal of 3742281 is 1822473.

It is an interprime number because it is at equal distance from previous prime (3742279) and next prime (3742283).

It is not a de Polignac number, because 3742281 - 2¹ = 3742279 is a prime.

It is a super-2 number, since 2×3742281² = 28009334165922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3742283) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3316 + ... + 4298.

Almost surely, 2^3742281 is an apocalyptic number.

It is an amenable number.

3742281 is a deficient number, since it is larger than the sum of its proper divisors (1972791).

3742281 is an equidigital number, since it uses as much as digits as its factorization.

3742281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1033 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 3742281 is about 1934.4976091999. The cubic root of 3742281 is about 155.2549532831.

The spelling of 3742281 in words is "three million, seven hundred forty-two thousand, two hundred eighty-one".