1143726948 has 144 divisors (see below), whose sum is σ = 3587584000. Its totient is φ = 299158272.

The previous prime is 1143726923. The next prime is 1143726949. The reversal of 1143726948 is 8496273411.

It is a super-2 number, since 2×1143726948² = 2616222663162789408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143726949) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 414678 + ... + 417426.

Almost surely, 2^1143726948 is an apocalyptic number.

1143726948 is a gapful number since it is divisible by the number (18) 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 1143726948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793792000).

1143726948 is an abundant number, since it is smaller than the sum of its proper divisors (2443857052).

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

1143726948 is a wasteful number, since it uses less digits than its factorization.

1143726948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906 (or 2901 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1143726948 is about 33819.0323338797. The cubic root of 1143726948 is about 1045.7810901320.

The spelling of 1143726948 in words is "one billion, one hundred forty-three million, seven hundred twenty-six thousand, nine hundred forty-eight".