743645005404 has 48 divisors (see below), whose sum is σ = 1983137915136. Its totient is φ = 212460940800.

The previous prime is 743645005403. The next prime is 743645005423. The reversal of 743645005404 is 404500546347.

It is a happy number.

It is a super-3 number, since 3×743645005404³ (a number of 37 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743645005403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933959 + ... + 2286369.

It is an arithmetic number, because the mean of its divisors is an integer number (41315373232).

Almost surely, 2^743645005404 is an apocalyptic number.

It is an amenable number.

743645005404 is an abundant number, since it is smaller than the sum of its proper divisors (1239492909732).

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

743645005404 is a wasteful number, since it uses less digits than its factorization.

743645005404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377546 (or 377544 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 42.

The spelling of 743645005404 in words is "seven hundred forty-three billion, six hundred forty-five million, five thousand, four hundred four".