3400281 has 6 divisors (see below), whose sum is σ = 4911530. Its totient is φ = 2266848.

The previous prime is 3400273. The next prime is 3400291. The reversal of 3400281 is 1820043.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2944656 + 455625 = 1716^2 + 675^2 .

It is not a de Polignac number, because 3400281 - 2³ = 3400273 is a prime.

It is a super-2 number, since 2×3400281² = 23123821757922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3400211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188896 + ... + 188913.

Almost surely, 2^3400281 is an apocalyptic number.

It is an amenable number.

3400281 is a deficient number, since it is larger than the sum of its proper divisors (1511249).

3400281 is a wasteful number, since it uses less digits than its factorization.

3400281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377815 (or 377812 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3400281 is about 1843.9850867076. The cubic root of 3400281 is about 150.3736020376.

The spelling of 3400281 in words is "three million, four hundred thousand, two hundred eighty-one".