400244546 has 32 divisors (see below), whose sum is σ = 666342768. Its totient is φ = 179159040.

The previous prime is 400244543. The next prime is 400244569. The reversal of 400244546 is 645442004.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 44521 + 400200025 = 211^2 + 20005^2 .

It is a super-2 number, since 2×400244546² = 320391393205492232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400244543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114050 + ... + 117506.

Almost surely, 2^400244546 is an apocalyptic number.

400244546 is a deficient number, since it is larger than the sum of its proper divisors (266098222).

400244546 is a wasteful number, since it uses less digits than its factorization.

400244546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 400244546 is about 20006.1127158676. The cubic root of 400244546 is about 736.9564216669.

The spelling of 400244546 in words is "four hundred million, two hundred forty-four thousand, five hundred forty-six".