71429652 has 54 divisors (see below), whose sum is σ = 210042378. Its totient is φ = 20407968.

The previous prime is 71429641. The next prime is 71429653. The reversal of 71429652 is 25692417.

It can be written as a sum of positive squares in only one way, i.e., 46867716 + 24561936 = 6846^2 + 4956^2 .

It is a super-2 number, since 2×71429652² = 10204390369682208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18483 + ... + 22010.

Almost surely, 2^71429652 is an apocalyptic number.

It is an amenable number.

71429652 is an abundant number, since it is smaller than the sum of its proper divisors (138612726).

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

71429652 is a wasteful number, since it uses less digits than its factorization.

71429652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40517 (or 40505 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 71429652 is about 8451.6064745112. The cubic root of 71429652 is about 414.9153589419.

The spelling of 71429652 in words is "seventy-one million, four hundred twenty-nine thousand, six hundred fifty-two".