743849406 has 80 divisors (see below), whose sum is σ = 1723367184. Its totient is φ = 239625216.

The previous prime is 743849387. The next prime is 743849413. The reversal of 743849406 is 604948347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1156521 + ... + 1157163.

Almost surely, 2^743849406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 743849406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861683592).

743849406 is an abundant number, since it is smaller than the sum of its proper divisors (979517778).

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

743849406 is a wasteful number, since it uses less digits than its factorization.

743849406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 743849406 is about 27273.6027323124. The cubic root of 743849406 is about 906.0698380444.

The spelling of 743849406 in words is "seven hundred forty-three million, eight hundred forty-nine thousand, four hundred six".