400775134 has 16 divisors (see below), whose sum is σ = 610902000. Its totient is φ = 197166784.

The previous prime is 400775129. The next prime is 400775147. The reversal of 400775134 is 431577004.

It is a junction number, because it is equal to n+sod(n) for n = 400775096 and 400775105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25602 + ... + 38170.

It is an arithmetic number, because the mean of its divisors is an integer number (38181375).

Almost surely, 2^400775134 is an apocalyptic number.

400775134 is a deficient number, since it is larger than the sum of its proper divisors (210126866).

400775134 is a wasteful number, since it uses less digits than its factorization.

400775134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12827.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 400775134 is about 20019.3689710740. The cubic root of 400775134 is about 737.2819289752.

The spelling of 400775134 in words is "four hundred million, seven hundred seventy-five thousand, one hundred thirty-four".