400053535 has 8 divisors (see below), whose sum is σ = 548644896. Its totient is φ = 274322400.

The previous prime is 400053491. The next prime is 400053539. The reversal of 400053535 is 535350004.

It is a happy number.

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

It is not a de Polignac number, because 400053535 - 2¹⁷ = 399922463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400053539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5715016 + ... + 5715085.

It is an arithmetic number, because the mean of its divisors is an integer number (68580612).

Almost surely, 2^400053535 is an apocalyptic number.

400053535 is a deficient number, since it is larger than the sum of its proper divisors (148591361).

400053535 is a wasteful number, since it uses less digits than its factorization.

400053535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11430113.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 400053535 is about 20001.3383302218. The cubic root of 400053535 is about 736.8391690328.

The spelling of 400053535 in words is "four hundred million, fifty-three thousand, five hundred thirty-five".