1478786436 has 48 divisors (see below), whose sum is σ = 3837382080. Its totient is φ = 492480000.

The previous prime is 1478786431. The next prime is 1478786447. The reversal of 1478786436 is 6346878741.

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

It is not an unprimeable number, because it can be changed into a prime (1478786431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125811 + ... + 137061.

It is an arithmetic number, because the mean of its divisors is an integer number (79945460).

Almost surely, 2^1478786436 is an apocalyptic number.

It is an amenable number.

1478786436 is an abundant number, since it is smaller than the sum of its proper divisors (2358595644).

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

1478786436 is a wasteful number, since it uses less digits than its factorization.

1478786436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481 (or 12473 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 1478786436 is about 38454.9923416973. The cubic root of 1478786436 is about 1139.2922754091.

The spelling of 1478786436 in words is "one billion, four hundred seventy-eight million, seven hundred eighty-six thousand, four hundred thirty-six".