40345430 has 8 divisors (see below), whose sum is σ = 72621792. Its totient is φ = 16138168.

The previous prime is 40345423. The next prime is 40345433. The reversal of 40345430 is 3454304.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 40345396 and 40345405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40345433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017262 + ... + 2017281.

It is an arithmetic number, because the mean of its divisors is an integer number (9077724).

Almost surely, 2^40345430 is an apocalyptic number.

40345430 is a deficient number, since it is larger than the sum of its proper divisors (32276362).

40345430 is a wasteful number, since it uses less digits than its factorization.

40345430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034550.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 40345430 is about 6351.8052552011. The cubic root of 40345430 is about 342.9768306506.

Adding to 40345430 its reverse (3454304), we get a palindrome (43799734).

The spelling of 40345430 in words is "forty million, three hundred forty-five thousand, four hundred thirty".