40633747 has 32 divisors (see below), whose sum is σ = 52996608. Its totient is φ = 30240000.

The previous prime is 40633739. The next prime is 40633787. The reversal of 40633747 is 74733604.

It is not a de Polignac number, because 40633747 - 2³ = 40633739 is a prime.

It is a super-2 number, since 2×40633747² = 3302202790520018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40633787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192472 + ... + 192682.

It is an arithmetic number, because the mean of its divisors is an integer number (1656144).

Almost surely, 2^40633747 is an apocalyptic number.

40633747 is a deficient number, since it is larger than the sum of its proper divisors (12362861).

40633747 is a wasteful number, since it uses less digits than its factorization.

40633747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331.

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 40633747 is about 6374.4605261936. The cubic root of 40633747 is about 343.7918872593.

The spelling of 40633747 in words is "forty million, six hundred thirty-three thousand, seven hundred forty-seven".