400220302 has 16 divisors (see below), whose sum is σ = 608205312. Its totient is φ = 197498520.

The previous prime is 400220299. The next prime is 400220333. The reversal of 400220302 is 203022004.

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, 60943 + ... + 67189.

It is an arithmetic number, because the mean of its divisors is an integer number (38012832).

Almost surely, 2^400220302 is an apocalyptic number.

400220302 is a deficient number, since it is larger than the sum of its proper divisors (207985010).

400220302 is a wasteful number, since it uses less digits than its factorization.

400220302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 400220302 is about 20005.5067918811. The cubic root of 400220302 is about 736.9415414873.

Adding to 400220302 its reverse (203022004), we get a palindrome (603242306).

The spelling of 400220302 in words is "four hundred million, two hundred twenty thousand, three hundred two".