75667740 has 36 divisors (see below), whose sum is σ = 212058504. Its totient is φ = 20160096.

The previous prime is 75667733. The next prime is 75667741. The reversal of 75667740 is 4776657.

It is a junction number, because it is equal to n+sod(n) for n = 75667692 and 75667701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75667741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66819 + ... + 67941.

It is an arithmetic number, because the mean of its divisors is an integer number (5890514).

Almost surely, 2^75667740 is an apocalyptic number.

It is an amenable number.

75667740 is an abundant number, since it is smaller than the sum of its proper divisors (136390764).

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

75667740 is a wasteful number, since it uses less digits than its factorization.

75667740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 75667740 is about 8698.7205955819. The cubic root of 75667740 is about 422.9641782898.

The spelling of 75667740 in words is "seventy-five million, six hundred sixty-seven thousand, seven hundred forty".