32400473 has 8 divisors (see below), whose sum is σ = 37152192. Its totient is φ = 27679536.

The previous prime is 32400449. The next prime is 32400479. The reversal of 32400473 is 37400423.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32400473 - 2⁶ = 32400409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32400479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390 + ... + 9687.

It is an arithmetic number, because the mean of its divisors is an integer number (4644024).

Almost surely, 2^32400473 is an apocalyptic number.

It is an amenable number.

32400473 is a deficient number, since it is larger than the sum of its proper divisors (4751719).

32400473 is a wasteful number, since it uses less digits than its factorization.

32400473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15391.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 32400473 is about 5692.1413369663. The cubic root of 32400473 is about 318.7991220976.

Adding to 32400473 its reverse (37400423), we get a palindrome (69800896).

The spelling of 32400473 in words is "thirty-two million, four hundred thousand, four hundred seventy-three".