71257350 has 48 divisors (see below), whose sum is σ = 182823120. Its totient is φ = 18345600.

The previous prime is 71257331. The next prime is 71257363. The reversal of 71257350 is 5375217.

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

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, 3841 + ... + 12540.

It is an arithmetic number, because the mean of its divisors is an integer number (3808815).

Almost surely, 2^71257350 is an apocalyptic number.

71257350 is an abundant number, since it is smaller than the sum of its proper divisors (111565770).

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

71257350 is a wasteful number, since it uses less digits than its factorization.

71257350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16425 (or 16420 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 71257350 is about 8441.4068732647. The cubic root of 71257350 is about 414.5814718961.

The spelling of 71257350 in words is "seventy-one million, two hundred fifty-seven thousand, three hundred fifty".