402201444 has 24 divisors (see below), whose sum is σ = 947243808. Its totient is φ = 132813760.

The previous prime is 402201427. The next prime is 402201461. The reversal of 402201444 is 444102204.

It is an interprime number because it is at equal distance from previous prime (402201427) and next prime (402201461).

It is a self number, because there is not a number n which added to its sum of digits gives 402201444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155337 + ... + 157904.

It is an arithmetic number, because the mean of its divisors is an integer number (39468492).

Almost surely, 2^402201444 is an apocalyptic number.

It is an amenable number.

402201444 is an abundant number, since it is smaller than the sum of its proper divisors (545042364).

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

402201444 is a wasteful number, since it uses less digits than its factorization.

402201444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313355 (or 313353 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 402201444 is about 20054.9605833569. The cubic root of 402201444 is about 738.1555257155.

Adding to 402201444 its reverse (444102204), we get a palindrome (846303648).

The spelling of 402201444 in words is "four hundred two million, two hundred one thousand, four hundred forty-four".