1010043240 has 64 divisors (see below), whose sum is σ = 3127887360. Its totient is φ = 260655360.

The previous prime is 1010043239. The next prime is 1010043247. The reversal of 1010043240 is 423400101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1010043247) 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, 132039 + ... + 139478.

It is an arithmetic number, because the mean of its divisors is an integer number (48873240).

Almost surely, 2^1010043240 is an apocalyptic number.

1010043240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010043240 is an abundant number, since it is smaller than the sum of its proper divisors (2117844120).

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

1010043240 is a wasteful number, since it uses less digits than its factorization.

1010043240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271562 (or 271558 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1010043240 is about 31781.1774482948. The cubic root of 1010043240 is about 1003.3366013759.

Adding to 1010043240 its reverse (423400101), we get a palindrome (1433443341).

The spelling of 1010043240 in words is "one billion, ten million, forty-three thousand, two hundred forty".