71814450 has 24 divisors (see below), whose sum is σ = 178100208. Its totient is φ = 19150480.

The previous prime is 71814437. The next prime is 71814461. The reversal of 71814450 is 5441817.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 11 ways as a sum of consecutive naturals, for example, 239232 + ... + 239531.

It is an arithmetic number, because the mean of its divisors is an integer number (7420842).

Almost surely, 2^71814450 is an apocalyptic number.

71814450 is an abundant number, since it is smaller than the sum of its proper divisors (106285758).

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

71814450 is a wasteful number, since it uses less digits than its factorization.

71814450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478778 (or 478773 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 71814450 is about 8474.3406823186. The cubic root of 71814450 is about 415.6590872226.

The spelling of 71814450 in words is "seventy-one million, eight hundred fourteen thousand, four hundred fifty".