1913783040 has 324 divisors, whose sum is σ = 7177309776. Its totient is φ = 470605824.

The previous prime is 1913783023. The next prime is 1913783071. The reversal of 1913783040 is 403873191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1913782986 and 1913783004.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1946389 + ... + 1947371.

Almost surely, 2^1913783040 is an apocalyptic number.

1913783040 is a gapful number since it is divisible by the number (10) 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 1913783040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3588654888).

1913783040 is an abundant number, since it is smaller than the sum of its proper divisors (5263526736).

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

1913783040 is a wasteful number, since it uses less digits than its factorization.

1913783040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1913783040 is about 43746.8060548424. The cubic root of 1913783040 is about 1241.5500560028.

The spelling of 1913783040 in words is "one billion, nine hundred thirteen million, seven hundred eighty-three thousand, forty".