402204023444 has 24 divisors (see below), whose sum is σ = 723087028608. Its totient is φ = 195610839840.

The previous prime is 402204023423. The next prime is 402204023467. The reversal of 402204023444 is 444320402204.

It is a super-2 number, since 2×402204023444² (a number of 24 digits) contains 22 as substring.

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, 132617 + ... + 906639.

It is an arithmetic number, because the mean of its divisors is an integer number (30128626192).

Almost surely, 2^402204023444 is an apocalyptic number.

It is an amenable number.

402204023444 is a deficient number, since it is larger than the sum of its proper divisors (320883005164).

402204023444 is a wasteful number, since it uses less digits than its factorization.

402204023444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777575 (or 777573 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 402204023444 its reverse (444320402204), we get a palindrome (846524425648).

The spelling of 402204023444 in words is "four hundred two billion, two hundred four million, twenty-three thousand, four hundred forty-four".