400134835802 has 32 divisors (see below), whose sum is σ = 677273667840. Its totient is φ = 175915111680.

The previous prime is 400134835787. The next prime is 400134835829. The reversal of 400134835802 is 208538431004.

It is a happy 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, 1244102 + ... + 1532337.

It is an arithmetic number, because the mean of its divisors is an integer number (21164802120).

Almost surely, 2^400134835802 is an apocalyptic number.

400134835802 is a deficient number, since it is larger than the sum of its proper divisors (277138832038).

400134835802 is a wasteful number, since it uses less digits than its factorization.

400134835802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776718.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 400134835802 in words is "four hundred billion, one hundred thirty-four million, eight hundred thirty-five thousand, eight hundred two".