40325389 has 16 divisors (see below), whose sum is σ = 45803520. Its totient is φ = 35239680.

The previous prime is 40325381. The next prime is 40325407. The reversal of 40325389 is 98352304.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40325389 - 2³ = 40325381 is a prime.

It is a super-2 number, since 2×40325389² = 3252273996002642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40325381) 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, 17877 + ... + 20005.

It is an arithmetic number, because the mean of its divisors is an integer number (2862720).

Almost surely, 2^40325389 is an apocalyptic number.

It is an amenable number.

40325389 is a deficient number, since it is larger than the sum of its proper divisors (5478131).

40325389 is a wasteful number, since it uses less digits than its factorization.

40325389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 40325389 is about 6350.2274762405. The cubic root of 40325389 is about 342.9200316765.

The spelling of 40325389 in words is "forty million, three hundred twenty-five thousand, three hundred eighty-nine".