75671240 has 32 divisors (see below), whose sum is σ = 174416760. Its totient is φ = 29529600.

The previous prime is 75671221. The next prime is 75671251. The reversal of 75671240 is 4217657.

It can be written as a sum of positive squares in 4 ways, for example, as 21883684 + 53787556 = 4678^2 + 7334^2 .

It is a super-2 number, since 2×75671240² = 11452273126275200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 75671197 and 75671206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21431 + ... + 24710.

Almost surely, 2^75671240 is an apocalyptic number.

It is an amenable number.

75671240 is an abundant number, since it is smaller than the sum of its proper divisors (98745520).

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

75671240 is a wasteful number, since it uses less digits than its factorization.

75671240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46193 (or 46189 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 75671240 is about 8698.9217722658. The cubic root of 75671240 is about 422.9706995709.

Adding to 75671240 its reverse (4217657), we get a palindrome (79888897).

The spelling of 75671240 in words is "seventy-five million, six hundred seventy-one thousand, two hundred forty".