306073404 has 180 divisors, whose sum is σ = 1003044504. Its totient is φ = 80668224.

The previous prime is 306073387. The next prime is 306073409. The reversal of 306073404 is 404370603.

It is a super-2 number, since 2×306073404² = 187361857272294432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306073409) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 205647 + ... + 207129.

Almost surely, 2^306073404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306073404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501522252).

306073404 is an abundant number, since it is smaller than the sum of its proper divisors (696971100).

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

306073404 is a wasteful number, since it uses less digits than its factorization.

306073404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 306073404 is about 17494.9536724165. The cubic root of 306073404 is about 673.9202886593.

The spelling of 306073404 in words is "three hundred six million, seventy-three thousand, four hundred four".