73402020400 has 60 divisors (see below), whose sum is σ = 176856896952. Its totient is φ = 29276139520.

The previous prime is 73402020397. The next prime is 73402020401. The reversal of 73402020400 is 402020437.

It is not an unprimeable number, because it can be changed into a prime (73402020401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125617 + ... + 403216.

Almost surely, 2^73402020400 is an apocalyptic number.

It is an amenable number.

73402020400 is an abundant number, since it is smaller than the sum of its proper divisors (103454876552).

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

73402020400 is a wasteful number, since it uses less digits than its factorization.

73402020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529198 (or 529187 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

Adding to 73402020400 its reverse (402020437), we get a palindrome (73804040837).

The spelling of 73402020400 in words is "seventy-three billion, four hundred two million, twenty thousand, four hundred".