71242746 has 8 divisors (see below), whose sum is σ = 142485504. Its totient is φ = 23747580.

The previous prime is 71242739. The next prime is 71242747. The reversal of 71242746 is 64724217.

It is a sphenic number, since it is the product of 3 distinct primes.

71242746 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71242747) 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, 5936890 + ... + 5936901.

It is an arithmetic number, because the mean of its divisors is an integer number (17810688).

Almost surely, 2^71242746 is an apocalyptic number.

71242746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71242746 is a wasteful number, since it uses less digits than its factorization.

71242746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11873796.

The product of its digits is 18816, while the sum is 33.

The square root of 71242746 is about 8440.5418072538. The cubic root of 71242746 is about 414.5531475128.

It can be divided in two parts, 7124 and 2746, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 71242746 in words is "seventy-one million, two hundred forty-two thousand, seven hundred forty-six".