305940894 has 128 divisors (see below), whose sum is σ = 770826240. Its totient is φ = 79035264.

The previous prime is 305940889. The next prime is 305940919. The reversal of 305940894 is 498049503.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1876857 + ... + 1877019.

It is an arithmetic number, because the mean of its divisors is an integer number (6022080).

Almost surely, 2^305940894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305940894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385413120).

305940894 is an abundant number, since it is smaller than the sum of its proper divisors (464885346).

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

305940894 is a wasteful number, since it uses less digits than its factorization.

305940894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 305940894 is about 17491.1661703844. The cubic root of 305940894 is about 673.8230199795.

The spelling of 305940894 in words is "three hundred five million, nine hundred forty thousand, eight hundred ninety-four".