748673280 has 432 divisors, whose sum is σ = 2812380480. Its totient is φ = 190439424.

The previous prime is 748673267. The next prime is 748673323. The reversal of 748673280 is 82376847.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-4 number, since 4×748673280⁴ (a number of 37 digits) contains 4444 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9020119 + ... + 9020201.

It is an arithmetic number, because the mean of its divisors is an integer number (6510140).

Almost surely, 2^748673280 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 748673280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406190240).

748673280 is an abundant number, since it is smaller than the sum of its proper divisors (2063707200).

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

748673280 is an equidigital number, since it uses as much as digits as its factorization.

748673280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 748673280 is about 27361.8946712394. The cubic root of 748673280 is about 908.0242445996.

The spelling of 748673280 in words is "seven hundred forty-eight million, six hundred seventy-three thousand, two hundred eighty".