305140454 has 16 divisors (see below), whose sum is σ = 464244480. Its totient is φ = 150407040.

The previous prime is 305140447. The next prime is 305140457. The reversal of 305140454 is 454041503.

It is a super-2 number, since 2×305140454² = 186221393334652232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305140457) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39632 + ... + 46700.

It is an arithmetic number, because the mean of its divisors is an integer number (29015280).

Almost surely, 2^305140454 is an apocalyptic number.

305140454 is a deficient number, since it is larger than the sum of its proper divisors (159104026).

305140454 is a wasteful number, since it uses less digits than its factorization.

305140454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7375.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 305140454 is about 17468.2699200579. The cubic root of 305140454 is about 673.2348606661.

Adding to 305140454 its reverse (454041503), we get a palindrome (759181957).

The spelling of 305140454 in words is "three hundred five million, one hundred forty thousand, four hundred fifty-four".