40253630 has 16 divisors (see below), whose sum is σ = 72559584. Its totient is φ = 16078560.

The previous prime is 40253627. The next prime is 40253687. The reversal of 40253630 is 3635204.

It is a junction number, because it is equal to n+sod(n) for n = 40253596 and 40253605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5759 + ... + 10661.

It is an arithmetic number, because the mean of its divisors is an integer number (4534974).

Almost surely, 2^40253630 is an apocalyptic number.

40253630 is a deficient number, since it is larger than the sum of its proper divisors (32305954).

40253630 is a wasteful number, since it uses less digits than its factorization.

40253630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 40253630 is about 6344.5748478523. The cubic root of 40253630 is about 342.7165022540.

Adding to 40253630 its reverse (3635204), we get a palindrome (43888834).

The spelling of 40253630 in words is "forty million, two hundred fifty-three thousand, six hundred thirty".