748052640 has 144 divisors (see below), whose sum is σ = 2569196448. Its totient is φ = 198194688.

The previous prime is 748052623. The next prime is 748052677. The reversal of 748052640 is 46250847.

748052640 is a `hidden beast` number, since 7 + 4 + 8 + 0 + 5 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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 = 748052595 and 748052604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233127 + ... + 236313.

It is an arithmetic number, because the mean of its divisors is an integer number (17841642).

Almost surely, 2^748052640 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 748052640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1284598224).

748052640 is an abundant number, since it is smaller than the sum of its proper divisors (1821143808).

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

748052640 is a wasteful number, since it uses less digits than its factorization.

748052640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 748052640 is about 27350.5509999342. The cubic root of 748052640 is about 907.7732619700.

The spelling of 748052640 in words is "seven hundred forty-eight million, fifty-two thousand, six hundred forty".