1047478272 has 120 divisors (see below), whose sum is σ = 2834214432. Its totient is φ = 344064000.

The previous prime is 1047478253. The next prime is 1047478277. The reversal of 1047478272 is 2728747401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047478277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4964247 + ... + 4964457.

Almost surely, 2^1047478272 is an apocalyptic number.

1047478272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1047478272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1417107216).

1047478272 is an abundant number, since it is smaller than the sum of its proper divisors (1786736160).

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

1047478272 is an equidigital number, since it uses as much as digits as its factorization.

1047478272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The square root of 1047478272 is about 32364.7689934595. The cubic root of 1047478272 is about 1015.5820299068.

The spelling of 1047478272 in words is "one billion, forty-seven million, four hundred seventy-eight thousand, two hundred seventy-two".