1430440121400 has 96 divisors (see below), whose sum is σ = 4528712643840. Its totient is φ = 373334719360.

The previous prime is 1430440121387. The next prime is 1430440121507. The reversal of 1430440121400 is 41210440341.

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

It is a congruent number.

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, 25334214 + ... + 25390613.

It is an arithmetic number, because the mean of its divisors is an integer number (47174090040).

Almost surely, 2^{1430440121400} is an apocalyptic number.

1430440121400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430440121400 is an abundant number, since it is smaller than the sum of its proper divisors (3098272522440).

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

1430440121400 is a wasteful number, since it uses less digits than its factorization.

1430440121400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50724893 (or 50724884 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1430440121400 its reverse (41210440341), we get a palindrome (1471650561741).

The spelling of 1430440121400 in words is "one trillion, four hundred thirty billion, four hundred forty million, one hundred twenty-one thousand, four hundred".