30005440156 has 6 divisors (see below), whose sum is σ = 52509520280. Its totient is φ = 15002720076.

The previous prime is 30005440139. The next prime is 30005440169. The reversal of 30005440156 is 65104450003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3750680016 + ... + 3750680023.

Almost surely, 2^30005440156 is an apocalyptic number.

It is an amenable number.

30005440156 is a deficient number, since it is larger than the sum of its proper divisors (22504080124).

30005440156 is a wasteful number, since it uses less digits than its factorization.

30005440156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501360043 (or 7501360041 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 30005440156 its reverse (65104450003), we get a palindrome (95109890159).

The spelling of 30005440156 in words is "thirty billion, five million, four hundred forty thousand, one hundred fifty-six".