305640453532 has 48 divisors (see below), whose sum is σ = 555065102592. Its totient is φ = 147163968000.

The previous prime is 305640453529. The next prime is 305640453571. The reversal of 305640453532 is 235354046503.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 3983532 + ... + 4059532.

It is an arithmetic number, because the mean of its divisors is an integer number (11563856304).

Almost surely, 2^305640453532 is an apocalyptic number.

It is an amenable number.

305640453532 is a deficient number, since it is larger than the sum of its proper divisors (249424649060).

305640453532 is a wasteful number, since it uses less digits than its factorization.

305640453532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76378 (or 76376 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 40.

The spelling of 305640453532 in words is "three hundred five billion, six hundred forty million, four hundred fifty-three thousand, five hundred thirty-two".