730477440 has 768 divisors, whose sum is σ = 3314787840. Its totient is φ = 149299200.

The previous prime is 730477427. The next prime is 730477441. The reversal of 730477440 is 44774037.

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

It is a junction number, because it is equal to n+sod(n) for n = 730477395 and 730477404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730477441) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11975010 + ... + 11975070.

It is an arithmetic number, because the mean of its divisors is an integer number (4316130).

Almost surely, 2^730477440 is an apocalyptic number.

730477440 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 730477440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657393920).

730477440 is an abundant number, since it is smaller than the sum of its proper divisors (2584310400).

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

730477440 is a wasteful number, since it uses less digits than its factorization.

730477440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The square root of 730477440 is about 27027.3461516295. The cubic root of 730477440 is about 900.6075897241.

The spelling of 730477440 in words is "seven hundred thirty million, four hundred seventy-seven thousand, four hundred forty".