1297406910 has 64 divisors (see below), whose sum is σ = 3142421568. Its totient is φ = 342810624.

The previous prime is 1297406863. The next prime is 1297406951. The reversal of 1297406910 is 196047921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2187574 + ... + 2188166.

It is an arithmetic number, because the mean of its divisors is an integer number (49100337).

Almost surely, 2^1297406910 is an apocalyptic number.

1297406910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1297406910 is an abundant number, since it is smaller than the sum of its proper divisors (1845014658).

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

1297406910 is a wasteful number, since it uses less digits than its factorization.

1297406910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1297406910 is about 36019.5351163782. The cubic root of 1297406910 is about 1090.6667385060. Note that the first 3 decimals are identical.

The spelling of 1297406910 in words is "one billion, two hundred ninety-seven million, four hundred six thousand, nine hundred ten".