7430531438990 has 32 divisors (see below), whose sum is σ = 14591359702656. Its totient is φ = 2701919216160.

The previous prime is 7430531438989. The next prime is 7430531439049. The reversal of 7430531438990 is 998341350347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2127269 + ... + 4402991.

It is an arithmetic number, because the mean of its divisors is an integer number (455979990708).

Almost surely, 2^{7430531438990} is an apocalyptic number.

7430531438990 is a deficient number, since it is larger than the sum of its proper divisors (7160828263666).

7430531438990 is a wasteful number, since it uses less digits than its factorization.

7430531438990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305424.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 7430531438990 in words is "seven trillion, four hundred thirty billion, five hundred thirty-one million, four hundred thirty-eight thousand, nine hundred ninety".