40355401 has 4 divisors (see below), whose sum is σ = 40392900. Its totient is φ = 40317904.

The previous prime is 40355353. The next prime is 40355407. The reversal of 40355401 is 10455304.

40355401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19149376 + 21206025 = 4376^2 + 4605^2 .

It is a cyclic number.

It is not a de Polignac number, because 40355401 - 2²³ = 31966793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40355407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17086 + ... + 19303.

It is an arithmetic number, because the mean of its divisors is an integer number (10098225).

Almost surely, 2^40355401 is an apocalyptic number.

It is an amenable number.

40355401 is a deficient number, since it is larger than the sum of its proper divisors (37499).

40355401 is a wasteful number, since it uses less digits than its factorization.

40355401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37498.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40355401 is about 6352.5901016829. The cubic root of 40355401 is about 343.0050828408.

The spelling of 40355401 in words is "forty million, three hundred fifty-five thousand, four hundred one".