73401500 has 48 divisors (see below), whose sum is σ = 162585696. Its totient is φ = 28944000.

The previous prime is 73401469. The next prime is 73401509. The reversal of 73401500 is 510437.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73401509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35495 + ... + 37505.

It is an arithmetic number, because the mean of its divisors is an integer number (3387202).

Almost surely, 2^73401500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73401500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81292848).

73401500 is an abundant number, since it is smaller than the sum of its proper divisors (89184196).

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

73401500 is a wasteful number, since it uses less digits than its factorization.

73401500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2091 counting only the distinct ones).

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

The square root of 73401500 is about 8567.4675371431. The cubic root of 73401500 is about 418.6987313783.

Adding to 73401500 its reverse (510437), we get a palindrome (73911937).

The spelling of 73401500 in words is "seventy-three million, four hundred one thousand, five hundred".