73444400740 has 12 divisors (see below), whose sum is σ = 154233241596. Its totient is φ = 29377760288.

The previous prime is 73444400723. The next prime is 73444400873. The reversal of 73444400740 is 4700444437.

It can be written as a sum of positive squares in 2 ways, for example, as 25230780964 + 48213619776 = 158842^2 + 219576^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73444400740.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836109999 + ... + 1836110038.

It is an arithmetic number, because the mean of its divisors is an integer number (12852770133).

Almost surely, 2^73444400740 is an apocalyptic number.

It is an amenable number.

73444400740 is an abundant number, since it is smaller than the sum of its proper divisors (80788840856).

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

73444400740 is a wasteful number, since it uses less digits than its factorization.

73444400740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672220046 (or 3672220044 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 37.

The spelling of 73444400740 in words is "seventy-three billion, four hundred forty-four million, four hundred thousand, seven hundred forty".