740071 has 6 divisors (see below), whose sum is σ = 774200. Its totient is φ = 707388.

The previous prime is 740059. The next prime is 740087. The reversal of 740071 is 170047.

It is not a de Polignac number, because 740071 - 2⁷ = 739943 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171 + ... + 1228.

2⁷⁴⁰⁰⁷¹ is an apocalyptic number.

740071 is a deficient number, since it is larger than the sum of its proper divisors (34129).

740071 is a wasteful number, since it uses less digits than its factorization.

740071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 740071 is about 860.2737936262. The cubic root of 740071 is about 90.4533096562.

The spelling of 740071 in words is "seven hundred forty thousand, seventy-one", and thus it is an iban number.