738323820 has 144 divisors (see below), whose sum is σ = 2427428640. Its totient is φ = 181643904.

The previous prime is 738323801. The next prime is 738323881. The reversal of 738323820 is 28323837.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 394527 + ... + 396393.

Almost surely, 2^738323820 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 738323820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213714320).

738323820 is an abundant number, since it is smaller than the sum of its proper divisors (1689104820).

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

738323820 is a wasteful number, since it uses less digits than its factorization.

738323820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1890 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 738323820 is about 27172.1147502361. The cubic root of 738323820 is about 903.8207201191.

The spelling of 738323820 in words is "seven hundred thirty-eight million, three hundred twenty-three thousand, eight hundred twenty".