732778380 has 192 divisors, whose sum is σ = 2394403200. Its totient is φ = 185794560.

The previous prime is 732778379. The next prime is 732778411. The reversal of 732778380 is 83877237.

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 (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1142860 + ... + 1143500.

It is an arithmetic number, because the mean of its divisors is an integer number (12470850).

Almost surely, 2^732778380 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 732778380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197201600).

732778380 is an abundant number, since it is smaller than the sum of its proper divisors (1661624820).

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

732778380 is a wasteful number, since it uses less digits than its factorization.

732778380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 732778380 is about 27069.8795712135. The cubic root of 732778380 is about 901.5522102868.

The spelling of 732778380 in words is "seven hundred thirty-two million, seven hundred seventy-eight thousand, three hundred eighty".