71432402 has 8 divisors (see below), whose sum is σ = 113451516. Its totient is φ = 33615232.

The previous prime is 71432371. The next prime is 71432407. The reversal of 71432402 is 20423417.

It can be written as a sum of positive squares in 2 ways, for example, as 69239041 + 2193361 = 8321^2 + 1481^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71432407) 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, 1050443 + ... + 1050510.

Almost surely, 2^71432402 is an apocalyptic number.

71432402 is a deficient number, since it is larger than the sum of its proper divisors (42019114).

71432402 is a wasteful number, since it uses less digits than its factorization.

71432402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100972.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 71432402 is about 8451.7691639088. The cubic root of 71432402 is about 414.9206835401.

Adding to 71432402 its reverse (20423417), we get a palindrome (91855819).

The spelling of 71432402 in words is "seventy-one million, four hundred thirty-two thousand, four hundred two".