71372630 has 64 divisors (see below), whose sum is σ = 159760512. Its totient is φ = 22394880.

The previous prime is 71372617. The next prime is 71372641. The reversal of 71372630 is 3627317.

It is a junction number, because it is equal to n+sod(n) for n = 71372593 and 71372602.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 43220 + ... + 44840.

It is an arithmetic number, because the mean of its divisors is an integer number (2496258).

Almost surely, 2^71372630 is an apocalyptic number.

71372630 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71372630 is an abundant number, since it is smaller than the sum of its proper divisors (88387882).

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

71372630 is a wasteful number, since it uses less digits than its factorization.

71372630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 71372630 is about 8448.2323594939. The cubic root of 71372630 is about 414.8049211361.

Adding to 71372630 its reverse (3627317), we get a palindrome (74999947).

The spelling of 71372630 in words is "seventy-one million, three hundred seventy-two thousand, six hundred thirty".