1051406340 has 48 divisors (see below), whose sum is σ = 2985413760. Its totient is φ = 276424960.

The previous prime is 1051406311. The next prime is 1051406341. The reversal of 1051406340 is 436041501.

It is a super-2 number, since 2×1051406340² = 2210910583584391200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051406340.

It is not an unprimeable number, because it can be changed into a prime (1051406341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119145 + ... + 127664.

It is an arithmetic number, because the mean of its divisors is an integer number (62196120).

Almost surely, 2^1051406340 is an apocalyptic number.

1051406340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051406340 is an abundant number, since it is smaller than the sum of its proper divisors (1934007420).

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

1051406340 is a wasteful number, since it uses less digits than its factorization.

1051406340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246892 (or 246890 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1051406340 is about 32425.3965280303. The cubic root of 1051406340 is about 1016.8499317868.

Adding to 1051406340 its reverse (436041501), we get a palindrome (1487447841).

The spelling of 1051406340 in words is "one billion, fifty-one million, four hundred six thousand, three hundred forty".