73000438030 has 32 divisors (see below), whose sum is σ = 141936143328. Its totient is φ = 26872560000.

The previous prime is 73000437971. The next prime is 73000438067. The reversal of 73000438030 is 3083400037.

It is a self number, because there is not a number n which added to its sum of digits gives 73000438030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805221 + ... + 891280.

It is an arithmetic number, because the mean of its divisors is an integer number (4435504479).

Almost surely, 2^73000438030 is an apocalyptic number.

73000438030 is a deficient number, since it is larger than the sum of its proper divisors (68935705298).

73000438030 is a wasteful number, since it uses less digits than its factorization.

73000438030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696852.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 73000438030 its reverse (3083400037), we get a palindrome (76083838067).

The spelling of 73000438030 in words is "seventy-three billion, four hundred thirty-eight thousand, thirty".