1023671040 has 144 divisors (see below), whose sum is σ = 3736497408. Its totient is φ = 233975808.

The previous prime is 1023671023. The next prime is 1023671053. The reversal of 1023671040 is 401763201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1023671040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7839 + ... + 45921.

Almost surely, 2^1023671040 is an apocalyptic number.

1023671040 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 1023671040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1868248704).

1023671040 is an abundant number, since it is smaller than the sum of its proper divisors (2712826368).

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

1023671040 is an equidigital number, since it uses as much as digits as its factorization.

1023671040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38114 (or 38100 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1023671040 is about 31994.8595871274. The cubic root of 1023671040 is about 1007.8288951194.

The spelling of 1023671040 in words is "one billion, twenty-three million, six hundred seventy-one thousand, forty".