406623325 has 24 divisors (see below), whose sum is σ = 527430528. Its totient is φ = 310390080.

The previous prime is 406623317. The next prime is 406623353. The reversal of 406623325 is 523326604.

It is a happy number.

It is not a de Polignac number, because 406623325 - 2³ = 406623317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 371479 + ... + 372571.

It is an arithmetic number, because the mean of its divisors is an integer number (21976272).

Almost surely, 2^406623325 is an apocalyptic number.

It is an amenable number.

406623325 is a deficient number, since it is larger than the sum of its proper divisors (120807203).

406623325 is a wasteful number, since it uses less digits than its factorization.

406623325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 406623325 is about 20164.9032975613. The cubic root of 406623325 is about 740.8508140737.

Adding to 406623325 its reverse (523326604), we get a palindrome (929949929).

The spelling of 406623325 in words is "four hundred six million, six hundred twenty-three thousand, three hundred twenty-five".