1421916400 has 60 divisors (see below), whose sum is σ = 3533981400. Its totient is φ = 549149440.

The previous prime is 1421916359. The next prime is 1421916407. The reversal of 1421916400 is 46191241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421916407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49690 + ... + 72889.

It is an arithmetic number, because the mean of its divisors is an integer number (58899690).

Almost surely, 2^1421916400 is an apocalyptic number.

1421916400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421916400 is an abundant number, since it is smaller than the sum of its proper divisors (2112065000).

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

1421916400 is a wasteful number, since it uses less digits than its factorization.

1421916400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122626 (or 122615 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1421916400 is about 37708.3067771546. The cubic root of 1421916400 is about 1124.4962748994.

The spelling of 1421916400 in words is "one billion, four hundred twenty-one million, nine hundred sixteen thousand, four hundred".