781484452 has 12 divisors (see below), whose sum is σ = 1562968960. Its totient is φ = 334921896.

The previous prime is 781484443. The next prime is 781484453. The reversal of 781484452 is 254484187.

781484452 is an admirable number.

It is a super-2 number, since 2×781484452² = 1221435897435480608, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 781484399 and 781484408.

It is not an unprimeable number, because it can be changed into a prime (781484453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13955052 + ... + 13955107.

Almost surely, 2^781484452 is an apocalyptic number.

It is an amenable number.

781484452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

781484452 is a wasteful number, since it uses less digits than its factorization.

781484452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27910170 (or 27910168 counting only the distinct ones).

The product of its digits is 286720, while the sum is 43.

The square root of 781484452 is about 27955.0434090166. The cubic root of 781484452 is about 921.0999964911.

The spelling of 781484452 in words is "seven hundred eighty-one million, four hundred eighty-four thousand, four hundred fifty-two".