400443153355 has 32 divisors (see below), whose sum is σ = 574486069248. Its totient is φ = 261995712000.

The previous prime is 400443153347. The next prime is 400443153367. The reversal of 400443153355 is 553351344004.

It is not a de Polignac number, because 400443153355 - 2³ = 400443153347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297451 + ... + 943060.

It is an arithmetic number, because the mean of its divisors is an integer number (17952689664).

Almost surely, 2^400443153355 is an apocalyptic number.

400443153355 is a deficient number, since it is larger than the sum of its proper divisors (174042915893).

400443153355 is a wasteful number, since it uses less digits than its factorization.

400443153355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240947.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 400443153355 its reverse (553351344004), we get a palindrome (953794497359).

The spelling of 400443153355 in words is "four hundred billion, four hundred forty-three million, one hundred fifty-three thousand, three hundred fifty-five".