76220240 has 20 divisors (see below), whose sum is σ = 177212244. Its totient is φ = 30488064.

The previous prime is 76220239. The next prime is 76220251. The reversal of 76220240 is 4202267.

It can be written as a sum of positive squares in 2 ways, for example, as 42719296 + 33500944 = 6536^2 + 5788^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476297 + ... + 476456.

Almost surely, 2^76220240 is an apocalyptic number.

It is an amenable number.

76220240 is an abundant number, since it is smaller than the sum of its proper divisors (100992004).

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

76220240 is a wasteful number, since it uses less digits than its factorization.

76220240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952766 (or 952760 counting only the distinct ones).

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

The square root of 76220240 is about 8730.4203793403. The cubic root of 76220240 is about 423.9911295166.

The spelling of 76220240 in words is "seventy-six million, two hundred twenty thousand, two hundred forty".