743509620 has 288 divisors, whose sum is σ = 2763790848. Its totient is φ = 157925376.

The previous prime is 743509619. The next prime is 743509631. The reversal of 743509620 is 26905347.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 95 ways as a sum of consecutive naturals, for example, 2206092 + ... + 2206428.

It is an arithmetic number, because the mean of its divisors is an integer number (9596496).

Almost surely, 2^743509620 is an apocalyptic number.

743509620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 743509620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1381895424).

743509620 is an abundant number, since it is smaller than the sum of its proper divisors (2020281228).

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

743509620 is a wasteful number, since it uses less digits than its factorization.

743509620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 743509620 is about 27267.3728107421. The cubic root of 743509620 is about 905.9318545883.

The spelling of 743509620 in words is "seven hundred forty-three million, five hundred nine thousand, six hundred twenty".