1421343400 has 48 divisors (see below), whose sum is σ = 3366999900. Its totient is φ = 557806080.

The previous prime is 1421343349. The next prime is 1421343461. The reversal of 1421343400 is 43431241.

It can be written as a sum of positive squares in 6 ways, for example, as 962612676 + 458730724 = 31026^2 + 21418^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56445 + ... + 77644.

Almost surely, 2^1421343400 is an apocalyptic number.

1421343400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421343400 is an abundant number, since it is smaller than the sum of its proper divisors (1945656500).

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

1421343400 is a wasteful number, since it uses less digits than its factorization.

1421343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134158 (or 134149 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1421343400 is about 37700.7082161595. The cubic root of 1421343400 is about 1124.3452057893.

Adding to 1421343400 its reverse (43431241), we get a palindrome (1464774641).

The spelling of 1421343400 in words is "one billion, four hundred twenty-one million, three hundred forty-three thousand, four hundred".