748899397440 has 448 divisors, whose sum is σ = 2789227238400. Its totient is φ = 188636055552.

The previous prime is 748899397429. The next prime is 748899397447. The reversal of 748899397440 is 44793998847.

748899397440 is a `hidden beast` number, since 7 + 4 + 8 + 8 + 9 + 93 + 97 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748899397447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56956947 + ... + 56970093.

Almost surely, 2^748899397440 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 748899397440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394613619200).

748899397440 is an abundant number, since it is smaller than the sum of its proper divisors (2040327840960).

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

748899397440 is a wasteful number, since it uses less digits than its factorization.

748899397440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13539 (or 13523 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 72.

The spelling of 748899397440 in words is "seven hundred forty-eight billion, eight hundred ninety-nine million, three hundred ninety-seven thousand, four hundred forty".