30400615444 has 12 divisors (see below), whose sum is σ = 53202460500. Its totient is φ = 15199912448.

The previous prime is 30400615439. The next prime is 30400615463. The reversal of 30400615444 is 44451600403.

It can be written as a sum of positive squares in 2 ways, for example, as 10978848400 + 19421767044 = 104780^2 + 139362^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136482 + ... + 281830.

It is an arithmetic number, because the mean of its divisors is an integer number (4433538375).

Almost surely, 2^30400615444 is an apocalyptic number.

It is an amenable number.

30400615444 is a deficient number, since it is larger than the sum of its proper divisors (22801845056).

30400615444 is a wasteful number, since it uses less digits than its factorization.

30400615444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197642 (or 197640 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 30400615444 in words is "thirty billion, four hundred million, six hundred fifteen thousand, four hundred forty-four".