71419436 has 12 divisors (see below), whose sum is σ = 136346280. Its totient is φ = 32463360.

The previous prime is 71419427. The next prime is 71419459. The reversal of 71419436 is 63491417.

It is a junction number, because it is equal to n+sod(n) for n = 71419396 and 71419405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811541 + ... + 811628.

It is an arithmetic number, because the mean of its divisors is an integer number (11362190).

Almost surely, 2^71419436 is an apocalyptic number.

It is an amenable number.

71419436 is a deficient number, since it is larger than the sum of its proper divisors (64926844).

71419436 is a wasteful number, since it uses less digits than its factorization.

71419436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623184 (or 1623182 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 71419436 is about 8451.0020707606. The cubic root of 71419436 is about 414.8955773466.

Subtracting from 71419436 its sum of digits (35), we obtain a square (71419401 = 8451²).

The spelling of 71419436 in words is "seventy-one million, four hundred nineteen thousand, four hundred thirty-six".