30763540 has 24 divisors (see below), whose sum is σ = 68404392. Its totient is φ = 11581440.

The previous prime is 30763531. The next prime is 30763541. The reversal of 30763540 is 4536703.

It can be written as a sum of positive squares in 4 ways, for example, as 1473796 + 29289744 = 1214^2 + 5412^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30763499 and 30763508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30763541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44901 + ... + 45580.

It is an arithmetic number, because the mean of its divisors is an integer number (2850183).

Almost surely, 2^30763540 is an apocalyptic number.

It is an amenable number.

30763540 is an abundant number, since it is smaller than the sum of its proper divisors (37640852).

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

30763540 is a wasteful number, since it uses less digits than its factorization.

30763540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90507 (or 90505 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 30763540 is about 5546.4889795257. The cubic root of 30763540 is about 313.3373044112.

The spelling of 30763540 in words is "thirty million, seven hundred sixty-three thousand, five hundred forty".