400245535 has 16 divisors (see below), whose sum is σ = 509102496. Its totient is φ = 301032448.

The previous prime is 400245511. The next prime is 400245551. The reversal of 400245535 is 535542004.

It is a cyclic number.

It is not a de Polignac number, because 400245535 - 2⁷ = 400245407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99432 + ... + 103378.

It is an arithmetic number, because the mean of its divisors is an integer number (31818906).

Almost surely, 2^400245535 is an apocalyptic number.

400245535 is a deficient number, since it is larger than the sum of its proper divisors (108856961).

400245535 is a wasteful number, since it uses less digits than its factorization.

400245535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 400245535 is about 20006.1374332978. The cubic root of 400245535 is about 736.9570286703.

Adding to 400245535 its reverse (535542004), we get a palindrome (935787539).

The spelling of 400245535 in words is "four hundred million, two hundred forty-five thousand, five hundred thirty-five".