400214132 has 12 divisors (see below), whose sum is σ = 708244740. Its totient is φ = 197858496.

The previous prime is 400214093. The next prime is 400214137. The reversal of 400214132 is 231412004.

It can be written as a sum of positive squares in 2 ways, for example, as 149181796 + 251032336 = 12214^2 + 15844^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 400214132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400214137) 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, 561743 + ... + 562454.

It is an arithmetic number, because the mean of its divisors is an integer number (59020395).

Almost surely, 2^400214132 is an apocalyptic number.

It is an amenable number.

400214132 is a deficient number, since it is larger than the sum of its proper divisors (308030608).

400214132 is a wasteful number, since it uses less digits than its factorization.

400214132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124290 (or 1124288 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 400214132 is about 20005.3525837462. The cubic root of 400214132 is about 736.9377544458.

Adding to 400214132 its reverse (231412004), we get a palindrome (631626136).

The spelling of 400214132 in words is "four hundred million, two hundred fourteen thousand, one hundred thirty-two".