1421074200 has 384 divisors, whose sum is σ = 5744632320. Its totient is φ = 282009600.

The previous prime is 1421074139. The next prime is 1421074219. The reversal of 1421074200 is 24701241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 927435 + ... + 928965.

It is an arithmetic number, because the mean of its divisors is an integer number (14959980).

Almost surely, 2^1421074200 is an apocalyptic number.

1421074200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421074200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872316160).

1421074200 is an abundant number, since it is smaller than the sum of its proper divisors (4323558120).

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

1421074200 is a wasteful number, since it uses less digits than its factorization.

1421074200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1421074200 is about 37697.1378223865. The cubic root of 1421074200 is about 1124.2742182901.

Adding to 1421074200 its reverse (24701241), we get a palindrome (1445775441).

It can be divided in two parts, 14210 and 74200, that added together give a triangular number (88410 = T₄₂₀).

The spelling of 1421074200 in words is "one billion, four hundred twenty-one million, seventy-four thousand, two hundred".