40633901 has 32 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 29534400.

The previous prime is 40633889. The next prime is 40633903. The reversal of 40633901 is 10933604.

It is not a de Polignac number, because 40633901 - 2¹⁰ = 40632877 is a prime.

It is a super-2 number, since 2×40633901² = 3302227820955602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40633903) 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, 68930 + ... + 69516.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^40633901 is an apocalyptic number.

It is an amenable number.

40633901 is a deficient number, since it is larger than the sum of its proper divisors (13556179).

40633901 is a wasteful number, since it uses less digits than its factorization.

40633901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 40633901 is about 6374.4726056357. The cubic root of 40633901 is about 343.7923215771.

The spelling of 40633901 in words is "forty million, six hundred thirty-three thousand, nine hundred one".