1047579156 has 240 divisors, whose sum is σ = 3114574848. Its totient is φ = 304819200.

The previous prime is 1047579149. The next prime is 1047579157. The reversal of 1047579156 is 6519757401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047579157) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9270556 + ... + 9270668.

Almost surely, 2^1047579156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1047579156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557287424).

1047579156 is an abundant number, since it is smaller than the sum of its proper divisors (2066995692).

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

1047579156 is a wasteful number, since it uses less digits than its factorization.

1047579156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The square root of 1047579156 is about 32366.3275025141. The cubic root of 1047579156 is about 1015.6146328706.

The spelling of 1047579156 in words is "one billion, forty-seven million, five hundred seventy-nine thousand, one hundred fifty-six".