1421250600 has 192 divisors, whose sum is σ = 5493219840. Its totient is φ = 295315200.

The previous prime is 1421250599. The next prime is 1421250601. The reversal of 1421250600 is 60521241.

It is an interprime number because it is at equal distance from previous prime (1421250599) and next prime (1421250601).

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

It is not an unprimeable number, because it can be changed into a prime (1421250601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30819 + ... + 61581.

It is an arithmetic number, because the mean of its divisors is an integer number (28610520).

Almost surely, 2^1421250600 is an apocalyptic number.

1421250600 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 1421250600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2746609920).

1421250600 is an abundant number, since it is smaller than the sum of its proper divisors (4071969240).

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

1421250600 is a wasteful number, since it uses less digits than its factorization.

1421250600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30800 (or 30791 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1421250600 is about 37699.4774499594. The cubic root of 1421250600 is about 1124.3207356281.

Adding to 1421250600 its reverse (60521241), we get a palindrome (1481771841).

The spelling of 1421250600 in words is "one billion, four hundred twenty-one million, two hundred fifty thousand, six hundred".