71426810 has 48 divisors (see below), whose sum is σ = 161077896. Its totient is φ = 22603392.

The previous prime is 71426807. The next prime is 71426837. The reversal of 71426810 is 1862417.

It can be written as a sum of positive squares in 4 ways, for example, as 24078649 + 47348161 = 4907^2 + 6881^2 .

It is a super-2 number, since 2×71426810² = 10203578373552200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 764 + ... + 11976.

Almost surely, 2^71426810 is an apocalyptic number.

71426810 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71426810 is an abundant number, since it is smaller than the sum of its proper divisors (89651086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71426810 is a wasteful number, since it uses less digits than its factorization.

71426810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11247 (or 11240 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 71426810 is about 8451.4383391231. The cubic root of 71426810 is about 414.9098560680.

The spelling of 71426810 in words is "seventy-one million, four hundred twenty-six thousand, eight hundred ten".