40510420 has 24 divisors (see below), whose sum is σ = 85456224. Its totient is φ = 16130976.

The previous prime is 40510373. The next prime is 40510423. The reversal of 40510420 is 2401504.

It is a junction number, because it is equal to n+sod(n) for n = 40510394 and 40510403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40510423) 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, 79 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (3560676).

Almost surely, 2^40510420 is an apocalyptic number.

It is an amenable number.

40510420 is an abundant number, since it is smaller than the sum of its proper divisors (44945804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40510420 is a wasteful number, since it uses less digits than its factorization.

40510420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9159 (or 9157 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40510420 is about 6364.7796505456. The cubic root of 40510420 is about 343.4437219008.

Adding to 40510420 its reverse (2401504), we get a palindrome (42911924).

The spelling of 40510420 in words is "forty million, five hundred ten thousand, four hundred twenty".