71620460 has 24 divisors (see below), whose sum is σ = 150564960. Its totient is φ = 28617344.

The previous prime is 71620441. The next prime is 71620463. The reversal of 71620460 is 6402617.

It is a super-2 number, since 2×71620460² = 10258980581223200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71620463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30032 + ... + 32328.

It is an arithmetic number, because the mean of its divisors is an integer number (6273540).

Almost surely, 2^71620460 is an apocalyptic number.

It is an amenable number.

71620460 is an abundant number, since it is smaller than the sum of its proper divisors (78944500).

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

71620460 is a wasteful number, since it uses less digits than its factorization.

71620460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3863 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 71620460 is about 8462.8872141841. The cubic root of 71620460 is about 415.2844809984.

The spelling of 71620460 in words is "seventy-one million, six hundred twenty thousand, four hundred sixty".