1040451345 has 32 divisors (see below), whose sum is σ = 1930118400. Its totient is φ = 530779392.

The previous prime is 1040451341. The next prime is 1040451413. The reversal of 1040451345 is 5431540401.

It is a happy number.

1040451345 is a `hidden beast` number, since 104 + 0 + 4 + 513 + 45 = 666.

It is not a de Polignac number, because 1040451345 - 2² = 1040451341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1040451341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164440 + ... + 170649.

It is an arithmetic number, because the mean of its divisors is an integer number (60316200).

Almost surely, 2^1040451345 is an apocalyptic number.

1040451345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040451345 is a deficient number, since it is larger than the sum of its proper divisors (889667055).

1040451345 is a wasteful number, since it uses less digits than its factorization.

1040451345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335126 (or 335120 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1040451345 is about 32256.0280412825. The cubic root of 1040451345 is about 1013.3059481456.

Adding to 1040451345 its reverse (5431540401), we get a palindrome (6471991746).

The spelling of 1040451345 in words is "one billion, forty million, four hundred fifty-one thousand, three hundred forty-five".