421248798720 has 208 divisors, whose sum is σ = 1497592638720. Its totient is φ = 112332865536.

The previous prime is 421248798709. The next prime is 421248798739. The reversal of 421248798720 is 27897842124.

421248798720 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 487 + 98 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172057 + ... + 933863.

Almost surely, 2^421248798720 is an apocalyptic number.

421248798720 is a gapful number since it is divisible by the number (40) 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 421248798720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748796319360).

421248798720 is an abundant number, since it is smaller than the sum of its proper divisors (1076343840000).

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

421248798720 is an equidigital number, since it uses as much as digits as its factorization.

421248798720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761845 (or 761817 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 421248798720 in words is "four hundred twenty-one billion, two hundred forty-eight million, seven hundred ninety-eight thousand, seven hundred twenty".