40303630 has 8 divisors (see below), whose sum is σ = 72546552. Its totient is φ = 16121448.

The previous prime is 40303621. The next prime is 40303631. The reversal of 40303630 is 3630304.

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 = 40303598 and 40303607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303631) 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, 2015172 + ... + 2015191.

It is an arithmetic number, because the mean of its divisors is an integer number (9068319).

Almost surely, 2^40303630 is an apocalyptic number.

40303630 is a deficient number, since it is larger than the sum of its proper divisors (32242922).

40303630 is a wasteful number, since it uses less digits than its factorization.

40303630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030370.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 40303630 is about 6348.5139993545. The cubic root of 40303630 is about 342.8583423404.

Adding to 40303630 its reverse (3630304), we get a palindrome (43933934).

The spelling of 40303630 in words is "forty million, three hundred three thousand, six hundred thirty".