1073438520 has 256 divisors, whose sum is σ = 4190330880. Its totient is φ = 213312000.

The previous prime is 1073438503. The next prime is 1073438623. The reversal of 1073438520 is 258343701.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209995 + ... + 215045.

It is an arithmetic number, because the mean of its divisors is an integer number (16368480).

Almost surely, 2^1073438520 is an apocalyptic number.

1073438520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1073438520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2095165440).

1073438520 is an abundant number, since it is smaller than the sum of its proper divisors (3116892360).

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

1073438520 is a wasteful number, since it uses less digits than its factorization.

1073438520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106 (or 5102 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1073438520 is about 32763.3716213701. The cubic root of 1073438520 is about 1023.9035731751.

The spelling of 1073438520 in words is "one billion, seventy-three million, four hundred thirty-eight thousand, five hundred twenty".