401243200 has 42 divisors (see below), whose sum is σ = 987312986. Its totient is φ = 160496640.

The previous prime is 401243189. The next prime is 401243209. The reversal of 401243200 is 2342104.

It can be written as a sum of positive squares in 3 ways, for example, as 94012416 + 307230784 = 9696^2 + 17528^2 .

It is a super-2 number, since 2×401243200² = 321992211092480000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (401243209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123789 + ... + 126988.

Almost surely, 2^401243200 is an apocalyptic number.

401243200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401243200 is an abundant number, since it is smaller than the sum of its proper divisors (586069786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401243200 is a wasteful number, since it uses less digits than its factorization.

401243200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250799 (or 250784 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 401243200 is about 20031.0558882951. The cubic root of 401243200 is about 737.5688416060.

Adding to 401243200 its reverse (2342104), we get a palindrome (403585304).

The spelling of 401243200 in words is "four hundred one million, two hundred forty-three thousand, two hundred".