400155130532 has 12 divisors (see below), whose sum is σ = 712140486960. Its totient is φ = 196686419976.

The previous prime is 400155130523. The next prime is 400155130537. The reversal of 400155130532 is 235031551004.

It is a junction number, because it is equal to n+sod(n) for n = 400155130495 and 400155130504.

It is not an unprimeable number, because it can be changed into a prime (400155130537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847786058 + ... + 847786529.

It is an arithmetic number, because the mean of its divisors is an integer number (59345040580).

Almost surely, 2^400155130532 is an apocalyptic number.

It is an amenable number.

400155130532 is a deficient number, since it is larger than the sum of its proper divisors (311985356428).

400155130532 is a wasteful number, since it uses less digits than its factorization.

400155130532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695572650 (or 1695572648 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 400155130532 its reverse (235031551004), we get a palindrome (635186681536).

The spelling of 400155130532 in words is "four hundred billion, one hundred fifty-five million, one hundred thirty thousand, five hundred thirty-two".