145777404 has 48 divisors (see below), whose sum is σ = 356428800. Its totient is φ = 46284480.

The previous prime is 145777369. The next prime is 145777451. The reversal of 145777404 is 404777541.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 73822 + ... + 75770.

It is an arithmetic number, because the mean of its divisors is an integer number (7425600).

Almost surely, 2^145777404 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 145777404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178214400).

145777404 is an abundant number, since it is smaller than the sum of its proper divisors (210651396).

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

145777404 is a wasteful number, since it uses less digits than its factorization.

145777404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2248 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 39.

The square root of 145777404 is about 12073.8313720211. The cubic root of 145777404 is about 526.2960017185.

The spelling of 145777404 in words is "one hundred forty-five million, seven hundred seventy-seven thousand, four hundred four".