742208471 has 4 divisors (see below), whose sum is σ = 742492992. Its totient is φ = 741923952.

The previous prime is 742208407. The next prime is 742208473. The reversal of 742208471 is 174802247.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 742208471 - 2⁶ = 742208407 is a prime.

It is a super-3 number, since 3×742208471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742208473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138311 + ... + 143576.

It is an arithmetic number, because the mean of its divisors is an integer number (185623248).

Almost surely, 2^742208471 is an apocalyptic number.

742208471 is a deficient number, since it is larger than the sum of its proper divisors (284521).

742208471 is a wasteful number, since it uses less digits than its factorization.

742208471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284520.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 742208471 is about 27243.5032805988. The cubic root of 742208471 is about 905.4030828578.

The spelling of 742208471 in words is "seven hundred forty-two million, two hundred eight thousand, four hundred seventy-one".