743747940 has 192 divisors, whose sum is σ = 2540160000. Its totient is φ = 179532288.

The previous prime is 743747911. The next prime is 743747959. The reversal of 743747940 is 49747347.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 63 ways as a sum of consecutive naturals, for example, 371061 + ... + 373059.

It is an arithmetic number, because the mean of its divisors is an integer number (13230000).

Almost surely, 2^743747940 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 743747940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270080000).

743747940 is an abundant number, since it is smaller than the sum of its proper divisors (1796412060).

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

743747940 is a wasteful number, since it uses less digits than its factorization.

743747940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The square root of 743747940 is about 27271.7425185851. The cubic root of 743747940 is about 906.0286381895.

The spelling of 743747940 in words is "seven hundred forty-three million, seven hundred forty-seven thousand, nine hundred forty".