305452540 has 12 divisors (see below), whose sum is σ = 641450376. Its totient is φ = 122181008.

The previous prime is 305452507. The next prime is 305452541. The reversal of 305452540 is 45254503.

It is a junction number, because it is equal to n+sod(n) for n = 305452499 and 305452508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305452541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7636294 + ... + 7636333.

It is an arithmetic number, because the mean of its divisors is an integer number (53454198).

Almost surely, 2^305452540 is an apocalyptic number.

It is an amenable number.

305452540 is an abundant number, since it is smaller than the sum of its proper divisors (335997836).

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

305452540 is a wasteful number, since it uses less digits than its factorization.

305452540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15272636 (or 15272634 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 305452540 is about 17477.2005767514. The cubic root of 305452540 is about 673.4643020952.

The spelling of 305452540 in words is "three hundred five million, four hundred fifty-two thousand, five hundred forty".