421019299600 has 45 divisors (see below), whose sum is σ = 1011530045973. Its totient is φ = 168402528960.

The previous prime is 421019299579. The next prime is 421019299619. The reversal of 421019299600 is 6992910124.

The square root of 421019299600 is 648860.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 151566947856 + 269452351744 = 389316^2 + 519088^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12960979 + ... + 12993421.

Almost surely, 2^421019299600 is an apocalyptic number.

421019299600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

421019299600 is the 648860-th square number.

It is an amenable number.

421019299600 is an abundant number, since it is smaller than the sum of its proper divisors (590510746373).

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

421019299600 is an frugal number, since it uses more digits than its factorization.

421019299600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64904 (or 32450 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 421019299600 in words is "four hundred twenty-one billion, nineteen million, two hundred ninety-nine thousand, six hundred".