1421910000 has 600 divisors, whose sum is σ = 5932276064. Its totient is φ = 311040000.

The previous prime is 1421909999. The next prime is 1421910001. The reversal of 1421910000 is 191241.

It is an interprime number because it is at equal distance from previous prime (1421909999) and next prime (1421910001).

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421910001) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 23309970 + ... + 23310030.

Almost surely, 2^1421910000 is an apocalyptic number.

1421910000 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 1421910000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2966138032).

1421910000 is an abundant number, since it is smaller than the sum of its proper divisors (4510366064).

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

1421910000 is a wasteful number, since it uses less digits than its factorization.

1421910000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1421910000 is about 37708.2219151208. The cubic root of 1421910000 is about 1124.4945877897.

The spelling of 1421910000 in words is "one billion, four hundred twenty-one million, nine hundred ten thousand".