784420452 has 36 divisors (see below), whose sum is σ = 1986828480. Its totient is φ = 260947632.

The previous prime is 784420447. The next prime is 784420463. The reversal of 784420452 is 254024487.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3552 + ... + 39767.

It is an arithmetic number, because the mean of its divisors is an integer number (55189680).

Almost surely, 2^784420452 is an apocalyptic number.

It is an amenable number.

784420452 is an abundant number, since it is smaller than the sum of its proper divisors (1202408028).

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

784420452 is a wasteful number, since it uses less digits than its factorization.

784420452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43832 (or 43827 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 784420452 is about 28007.5070650710. The cubic root of 784420452 is about 922.2520645967.

The spelling of 784420452 in words is "seven hundred eighty-four million, four hundred twenty thousand, four hundred fifty-two".