400454134451234 has 16 divisors (see below), whose sum is σ = 601540573655736. Its totient is φ = 199940612256000.

The previous prime is 400454134451213. The next prime is 400454134451237. The reversal of 400454134451234 is 432154431454004.

It can be written as a sum of positive squares in 4 ways, for example, as 398608212780625 + 1845921670609 = 19965175^2 + 1358647^2 .

It is not an unprimeable number, because it can be changed into a prime (400454134451237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478618784 + ... + 479454740.

Almost surely, 2^{400454134451234} is an apocalyptic number.

400454134451234 is a deficient number, since it is larger than the sum of its proper divisors (201086439204502).

400454134451234 is a wasteful number, since it uses less digits than its factorization.

400454134451234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178341.

The product of its (nonzero) digits is 1843200, while the sum is 44.

The spelling of 400454134451234 in words is "four hundred trillion, four hundred fifty-four billion, one hundred thirty-four million, four hundred fifty-one thousand, two hundred thirty-four".