1029896465 has 32 divisors (see below), whose sum is σ = 1414488096. Its totient is φ = 713134080.

The previous prime is 1029896411. The next prime is 1029896471. The reversal of 1029896465 is 5646989201.

It is a Cunningham number, because it is equal to 32092²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 228100609 + 801795856 = 15103^2 + 28316^2 .

It is not a de Polignac number, because 1029896465 - 2¹⁸ = 1029634321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322175 + ... + 325355.

It is an arithmetic number, because the mean of its divisors is an integer number (44202753).

Almost surely, 2^1029896465 is an apocalyptic number.

It is an amenable number.

1029896465 is a deficient number, since it is larger than the sum of its proper divisors (384591631).

1029896465 is a wasteful number, since it uses less digits than its factorization.

1029896465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 1029896465 is about 32092.0000155802. Note that the first 4 decimals coincide. The cubic root of 1029896465 is about 1009.8677946748.

The spelling of 1029896465 in words is "one billion, twenty-nine million, eight hundred ninety-six thousand, four hundred sixty-five".