305146746 has 24 divisors (see below), whose sum is σ = 661602240. Its totient is φ = 101646216.

The previous prime is 305146741. The next prime is 305146763. The reversal of 305146746 is 647641503.

It is a happy number.

It is a super-2 number, since 2×305146746² = 186229073188777032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305146746.

It is not an unprimeable number, because it can be changed into a prime (305146741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26095 + ... + 35933.

It is an arithmetic number, because the mean of its divisors is an integer number (27566760).

Almost surely, 2^305146746 is an apocalyptic number.

305146746 is an abundant number, since it is smaller than the sum of its proper divisors (356455494).

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

305146746 is a wasteful number, since it uses less digits than its factorization.

305146746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11570 (or 11567 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 305146746 is about 17468.4500171023. The cubic root of 305146746 is about 673.2394880048.

The spelling of 305146746 in words is "three hundred five million, one hundred forty-six thousand, seven hundred forty-six".