40633906 has 8 divisors (see below), whose sum is σ = 61150320. Its totient is φ = 20250468.

The previous prime is 40633903. The next prime is 40633907. The reversal of 40633906 is 60933604.

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

It is a super-2 number, since 2×40633906² = 3302228633633672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40633903) 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, 32476 + ... + 33703.

It is an arithmetic number, because the mean of its divisors is an integer number (7643790).

Almost surely, 2^40633906 is an apocalyptic number.

40633906 is a deficient number, since it is larger than the sum of its proper divisors (20516414).

40633906 is a wasteful number, since it uses less digits than its factorization.

40633906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66488.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 40633906 is about 6374.4729978250. The cubic root of 40633906 is about 343.7923356784.

The spelling of 40633906 in words is "forty million, six hundred thirty-three thousand, nine hundred six".