284780947460 has 24 divisors (see below), whose sum is σ = 606463091136. Its totient is φ = 112307978720.

The previous prime is 284780947457. The next prime is 284780947471. The reversal of 284780947460 is 64749087482.

It is a super-2 number, since 2×284780947460² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 284780947460.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100273562 + ... + 100276401.

It is an arithmetic number, because the mean of its divisors is an integer number (25269295464).

Almost surely, 2^284780947460 is an apocalyptic number.

284780947460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284780947460 is an abundant number, since it is smaller than the sum of its proper divisors (321682143676).

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

284780947460 is a wasteful number, since it uses less digits than its factorization.

284780947460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200550043 (or 200550041 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 59.

The spelling of 284780947460 in words is "two hundred eighty-four billion, seven hundred eighty million, nine hundred forty-seven thousand, four hundred sixty".