402424203443400 has 144 divisors (see below), whose sum is σ = 1352078236454400. Its totient is φ = 107265190803840.

The previous prime is 402424203443347. The next prime is 402424203443429. The reversal of 402424203443400 is 4344302424204.

402424203443400 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 2 + 4 + 203 + 4 + 43 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45895884 + ... + 53956283.

It is an arithmetic number, because the mean of its divisors is an integer number (9389432197600).

Almost surely, 2^{402424203443400} is an apocalyptic number.

402424203443400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402424203443400 is an abundant number, since it is smaller than the sum of its proper divisors (949654033011000).

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

402424203443400 is a wasteful number, since it uses less digits than its factorization.

402424203443400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99854428 (or 99854416 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 36.

Adding to 402424203443400 its reverse (4344302424204), we get a palindrome (406768505867604).

The spelling of 402424203443400 in words is "four hundred two trillion, four hundred twenty-four billion, two hundred three million, four hundred forty-three thousand, four hundred".