1051843340 has 24 divisors (see below), whose sum is σ = 2285040240. Its totient is φ = 406228928.

The previous prime is 1051843319. The next prime is 1051843343. The reversal of 1051843340 is 433481501.

It is a super-2 number, since 2×1051843340² = 2212748823804711200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (1051843343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906182 + ... + 907341.

It is an arithmetic number, because the mean of its divisors is an integer number (95210010).

Almost surely, 2^1051843340 is an apocalyptic number.

1051843340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051843340 is an abundant number, since it is smaller than the sum of its proper divisors (1233196900).

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

1051843340 is a wasteful number, since it uses less digits than its factorization.

1051843340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813561 (or 1813559 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1051843340 is about 32432.1343731799. The cubic root of 1051843340 is about 1016.9907913363.

The spelling of 1051843340 in words is "one billion, fifty-one million, eight hundred forty-three thousand, three hundred forty".