30403310040 has 64 divisors (see below), whose sum is σ = 101344370400. Its totient is φ = 8107549056.

The previous prime is 30403309967. The next prime is 30403310057. The reversal of 30403310040 is 4001330403.

It is a super-2 number, since 2×30403310040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30403309995 and 30403310022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14074527 + ... + 14076686.

Almost surely, 2^30403310040 is an apocalyptic number.

30403310040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30403310040 is an abundant number, since it is smaller than the sum of its proper divisors (70941060360).

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

30403310040 is a wasteful number, since it uses less digits than its factorization.

30403310040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28151233 (or 28151223 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30403310040 its reverse (4001330403), we get a palindrome (34404640443).

The spelling of 30403310040 in words is "thirty billion, four hundred three million, three hundred ten thousand, forty".