8401281 has 32 divisors (see below), whose sum is σ = 13747968. Its totient is φ = 4454400.

The previous prime is 8401277. The next prime is 8401291. The reversal of 8401281 is 1821048.

It is not a de Polignac number, because 8401281 - 2² = 8401277 is a prime.

It is a super-2 number, since 2×8401281² = 141163044881922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8401201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35941 + ... + 36173.

It is an arithmetic number, because the mean of its divisors is an integer number (429624).

Almost surely, 2^8401281 is an apocalyptic number.

It is an amenable number.

8401281 is a deficient number, since it is larger than the sum of its proper divisors (5346687).

8401281 is a wasteful number, since it uses less digits than its factorization.

8401281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 8401281 is about 2898.4963343085. The cubic root of 8401281 is about 203.2896042007.

The spelling of 8401281 in words is "eight million, four hundred one thousand, two hundred eighty-one".