1199451948 has 48 divisors (see below), whose sum is σ = 2925158880. Its totient is φ = 382040064.

The previous prime is 1199451941. The next prime is 1199451973. The reversal of 1199451948 is 8491549911.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1199451948.

It is not an unprimeable number, because it can be changed into a prime (1199451941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15990 + ... + 51522.

It is an arithmetic number, because the mean of its divisors is an integer number (60940810).

Almost surely, 2^1199451948 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 1199451948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462579440).

1199451948 is an abundant number, since it is smaller than the sum of its proper divisors (1725706932).

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

1199451948 is a wasteful number, since it uses less digits than its factorization.

1199451948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35666 (or 35664 counting only the distinct ones).

The product of its digits is 466560, while the sum is 51.

The square root of 1199451948 is about 34633.1047987327. The cubic root of 1199451948 is about 1062.4967689498.

The spelling of 1199451948 in words is "one billion, one hundred ninety-nine million, four hundred fifty-one thousand, nine hundred forty-eight".