534240681 has 16 divisors (see below), whose sum is σ = 783439104. Its totient is φ = 321767424.

The previous prime is 534240673. The next prime is 534240713. The reversal of 534240681 is 186042435.

It is not a de Polignac number, because 534240681 - 2³ = 534240673 is a prime.

It is a super-2 number, since 2×534240681² = 570826210470687522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (534240631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143896 + ... + 147561.

It is an arithmetic number, because the mean of its divisors is an integer number (48964944).

Almost surely, 2^534240681 is an apocalyptic number.

It is an amenable number.

534240681 is a deficient number, since it is larger than the sum of its proper divisors (249198423).

534240681 is a wasteful number, since it uses less digits than its factorization.

534240681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291520.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 534240681 is about 23113.6470726712. The cubic root of 534240681 is about 811.4198948387.

The spelling of 534240681 in words is "five hundred thirty-four million, two hundred forty thousand, six hundred eighty-one".