402222431400 has 96 divisors (see below), whose sum is σ = 1301102170560. Its totient is φ = 102595863040.

The previous prime is 402222431339. The next prime is 402222431417. The reversal of 402222431400 is 4134222204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14559477 + ... + 14587076.

It is an arithmetic number, because the mean of its divisors is an integer number (13553147610).

Almost surely, 2^402222431400 is an apocalyptic number.

402222431400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402222431400 is an abundant number, since it is smaller than the sum of its proper divisors (898879739160).

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

402222431400 is a wasteful number, since it uses less digits than its factorization.

402222431400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29146595 (or 29146586 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 402222431400 its reverse (4134222204), we get a palindrome (406356653604).

The spelling of 402222431400 in words is "four hundred two billion, two hundred twenty-two million, four hundred thirty-one thousand, four hundred".