1305049902 has 64 divisors (see below), whose sum is σ = 2844979200. Its totient is φ = 396720000.

The previous prime is 1305049891. The next prime is 1305049913. The reversal of 1305049902 is 2099405031.

It is an interprime number because it is at equal distance from previous prime (1305049891) and next prime (1305049913).

It is a congruent 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, 3739224 + ... + 3739572.

It is an arithmetic number, because the mean of its divisors is an integer number (44452800).

Almost surely, 2^1305049902 is an apocalyptic number.

1305049902 is an abundant number, since it is smaller than the sum of its proper divisors (1539929298).

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

1305049902 is a wasteful number, since it uses less digits than its factorization.

1305049902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1305049902 is about 36125.4744190301. The cubic root of 1305049902 is about 1092.8042435768.

The spelling of 1305049902 in words is "one billion, three hundred five million, forty-nine thousand, nine hundred two".