71349450 has 48 divisors (see below), whose sum is σ = 184648896. Its totient is φ = 18198400.

The previous prime is 71349449. The next prime is 71349451. The reversal of 71349450 is 5494317.

It is an interprime number because it is at equal distance from previous prime (71349449) and next prime (71349451).

It is not an unprimeable number, because it can be changed into a prime (71349451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6891 + ... + 13790.

It is an arithmetic number, because the mean of its divisors is an integer number (3846852).

Almost surely, 2^71349450 is an apocalyptic number.

71349450 is an abundant number, since it is smaller than the sum of its proper divisors (113299446).

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

71349450 is a wasteful number, since it uses less digits than its factorization.

71349450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20719 (or 20714 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 71349450 is about 8446.8603634723. The cubic root of 71349450 is about 414.7600102733.

The spelling of 71349450 in words is "seventy-one million, three hundred forty-nine thousand, four hundred fifty".