30012302440 has 16 divisors (see below), whose sum is σ = 67527680580. Its totient is φ = 12004920960.

The previous prime is 30012302429. The next prime is 30012302443. The reversal of 30012302440 is 4420321003.

It can be written as a sum of positive squares in 2 ways, for example, as 29831507524 + 180794916 = 172718^2 + 13446^2 .

It is not an unprimeable number, because it can be changed into a prime (30012302443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375153741 + ... + 375153820.

Almost surely, 2^30012302440 is an apocalyptic number.

It is an amenable number.

30012302440 is an abundant number, since it is smaller than the sum of its proper divisors (37515378140).

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

30012302440 is a wasteful number, since it uses less digits than its factorization.

30012302440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750307572 (or 750307568 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30012302440 its reverse (4420321003), we get a palindrome (34432623443).

The spelling of 30012302440 in words is "thirty billion, twelve million, three hundred two thousand, four hundred forty".