1147649970 has 64 divisors (see below), whose sum is σ = 2907135360. Its totient is φ = 289152000.

The previous prime is 1147649963. The next prime is 1147650019. The reversal of 1147649970 is 799467411.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226060 + ... + 231080.

It is an arithmetic number, because the mean of its divisors is an integer number (45423990).

Almost surely, 2^1147649970 is an apocalyptic number.

1147649970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147649970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1453567680).

1147649970 is an abundant number, since it is smaller than the sum of its proper divisors (1759485390).

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

1147649970 is a wasteful number, since it uses less digits than its factorization.

1147649970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5451.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 1147649970 is about 33876.9828939946. The cubic root of 1147649970 is about 1046.9754137825.

The spelling of 1147649970 in words is "one billion, one hundred forty-seven million, six hundred forty-nine thousand, nine hundred seventy".