73051400 has 24 divisors (see below), whose sum is σ = 169844970. Its totient is φ = 29220480.

The previous prime is 73051399. The next prime is 73051417. The reversal of 73051400 is 415037.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 70795396 + 2256004 = 8414^2 + 1502^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182429 + ... + 182828.

Almost surely, 2^73051400 is an apocalyptic number.

It is an amenable number.

73051400 is an abundant number, since it is smaller than the sum of its proper divisors (96793570).

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

73051400 is a wasteful number, since it uses less digits than its factorization.

73051400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365273 (or 365264 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 73051400 is about 8547.0111735039. The cubic root of 73051400 is about 418.0319870518.

Adding to 73051400 its reverse (415037), we get a palindrome (73466437).

The spelling of 73051400 in words is "seventy-three million, fifty-one thousand, four hundred".