40025623 has 8 divisors (see below), whose sum is σ = 44593920. Its totient is φ = 35612280.

The previous prime is 40025621. The next prime is 40025627. The reversal of 40025623 is 32652004.

It is a happy number.

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

It is not a de Polignac number, because 40025623 - 2¹ = 40025621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40025594 and 40025603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025621) 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, 38193 + ... + 39226.

It is an arithmetic number, because the mean of its divisors is an integer number (5574240).

Almost surely, 2^40025623 is an apocalyptic number.

40025623 is a deficient number, since it is larger than the sum of its proper divisors (4568297).

40025623 is a wasteful number, since it uses less digits than its factorization.

40025623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77477.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40025623 is about 6326.5806720534. The cubic root of 40025623 is about 342.0681982711.

Adding to 40025623 its reverse (32652004), we get a palindrome (72677627).

The spelling of 40025623 in words is "forty million, twenty-five thousand, six hundred twenty-three".