763521240 has 32 divisors (see below), whose sum is σ = 2290564080. Its totient is φ = 203605632.

The previous prime is 763521223. The next prime is 763521259. The reversal of 763521240 is 42125367.

It is a super-2 number, since 2×763521240² = 1165929367862275200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 763521198 and 763521207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3181219 + ... + 3181458.

Almost surely, 2^763521240 is an apocalyptic number.

It is an amenable number.

763521240 is an abundant number, since it is smaller than the sum of its proper divisors (1527042840).

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

763521240 is a wasteful number, since it uses less digits than its factorization.

763521240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6362691 (or 6362687 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 763521240 is about 27631.8881005262. Note that the first 3 decimals coincide. The cubic root of 763521240 is about 913.9877485601.

The spelling of 763521240 in words is "seven hundred sixty-three million, five hundred twenty-one thousand, two hundred forty".