71430774 has 16 divisors (see below), whose sum is σ = 146346480. Its totient is φ = 23229440.

The previous prime is 71430673. The next prime is 71430781. The reversal of 71430774 is 47703417.

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 7 ways as a sum of consecutive naturals, for example, 144939 + ... + 145430.

It is an arithmetic number, because the mean of its divisors is an integer number (9146655).

Almost surely, 2^71430774 is an apocalyptic number.

71430774 is an abundant number, since it is smaller than the sum of its proper divisors (74915706).

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

71430774 is a wasteful number, since it uses less digits than its factorization.

71430774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290415.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 71430774 is about 8451.6728521636. The cubic root of 71430774 is about 414.9175313945.

The spelling of 71430774 in words is "seventy-one million, four hundred thirty thousand, seven hundred seventy-four".