30430320240 has 40 divisors (see below), whose sum is σ = 94333993488. Its totient is φ = 8114752000.

The previous prime is 30430320211. The next prime is 30430320241. The reversal of 30430320240 is 4202303403.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30430320241) 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, 63396261 + ... + 63396740.

Almost surely, 2^30430320240 is an apocalyptic number.

30430320240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30430320240 is an abundant number, since it is smaller than the sum of its proper divisors (63903673248).

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

30430320240 is a wasteful number, since it uses less digits than its factorization.

30430320240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126793017 (or 126793011 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 30430320240 its reverse (4202303403), we get a palindrome (34632623643).

The spelling of 30430320240 in words is "thirty billion, four hundred thirty million, three hundred twenty thousand, two hundred forty".