402141031400 has 48 divisors (see below), whose sum is σ = 935959430700. Its totient is φ = 160687546880.

The previous prime is 402141031367. The next prime is 402141031403. The reversal of 402141031400 is 4130141204.

It can be written as a sum of positive squares in 6 ways, for example, as 228023440324 + 174117591076 = 477518^2 + 417274^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (402141031403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 864335 + ... + 1245534.

Almost surely, 2^402141031400 is an apocalyptic number.

402141031400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402141031400 is an abundant number, since it is smaller than the sum of its proper divisors (533818399300).

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

402141031400 is a wasteful number, since it uses less digits than its factorization.

402141031400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110838 (or 2110829 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 402141031400 its reverse (4130141204), we get a palindrome (406271172604).

The spelling of 402141031400 in words is "four hundred two billion, one hundred forty-one million, thirty-one thousand, four hundred".