71840104 has 32 divisors (see below), whose sum is σ = 154428480. Its totient is φ = 30691584.

The previous prime is 71840101. The next prime is 71840107. The reversal of 71840104 is 40104817.

It is an interprime number because it is at equal distance from previous prime (71840101) and next prime (71840107).

It is a super-2 number, since 2×71840104² = 10322001085461632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71840101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17584 + ... + 21280.

It is an arithmetic number, because the mean of its divisors is an integer number (4825890).

Almost surely, 2^71840104 is an apocalyptic number.

It is an amenable number.

71840104 is an abundant number, since it is smaller than the sum of its proper divisors (82588376).

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

71840104 is a wasteful number, since it uses less digits than its factorization.

71840104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057 (or 4053 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 71840104 is about 8475.8541752439. The cubic root of 71840104 is about 415.7085760963.

The spelling of 71840104 in words is "seventy-one million, eight hundred forty thousand, one hundred four".