1209995466 has 16 divisors (see below), whose sum is σ = 2420824224. Its totient is φ = 403192944.

The previous prime is 1209995443. The next prime is 1209995489. The reversal of 1209995466 is 6645999021.

It is an interprime number because it is at equal distance from previous prime (1209995443) and next prime (1209995489).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14980 + ... + 51423.

It is an arithmetic number, because the mean of its divisors is an integer number (151301514).

Almost surely, 2^1209995466 is an apocalyptic number.

1209995466 is an abundant number, since it is smaller than the sum of its proper divisors (1210828758).

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

1209995466 is a wasteful number, since it uses less digits than its factorization.

1209995466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69445.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 1209995466 is about 34784.9890901233. The cubic root of 1209995466 is about 1065.6009057896.

The spelling of 1209995466 in words is "one billion, two hundred nine million, nine hundred ninety-five thousand, four hundred sixty-six".