32401406 has 8 divisors (see below), whose sum is σ = 49083624. Its totient is φ = 16040200.

The previous prime is 32401399. The next prime is 32401433. The reversal of 32401406 is 60410423.

It is a happy number.

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

It is a super-2 number, since 2×32401406² = 2099702221553672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80000 + ... + 80403.

It is an arithmetic number, because the mean of its divisors is an integer number (6135453).

Almost surely, 2^32401406 is an apocalyptic number.

32401406 is a deficient number, since it is larger than the sum of its proper divisors (16682218).

32401406 is a wasteful number, since it uses less digits than its factorization.

32401406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160506.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 32401406 is about 5692.2232914741. The cubic root of 32401406 is about 318.8021821015.

Adding to 32401406 its reverse (60410423), we get a palindrome (92811829).

The spelling of 32401406 in words is "thirty-two million, four hundred one thousand, four hundred six".