738312840 has 128 divisors (see below), whose sum is σ = 2484432000. Its totient is φ = 195012864.

The previous prime is 738312793. The next prime is 738312863. The reversal of 738312840 is 48213837.

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 = 738312795 and 738312804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112366 + ... + 118754.

It is an arithmetic number, because the mean of its divisors is an integer number (19409625).

Almost surely, 2^738312840 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 738312840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242216000).

738312840 is an abundant number, since it is smaller than the sum of its proper divisors (1746119160).

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

738312840 is a wasteful number, since it uses less digits than its factorization.

738312840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516 (or 6506 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 738312840 is about 27171.9127041142. The cubic root of 738312840 is about 903.8162396999.

The spelling of 738312840 in words is "seven hundred thirty-eight million, three hundred twelve thousand, eight hundred forty".