1302491616 has 96 divisors (see below), whose sum is σ = 3556224000. Its totient is φ = 416908800.

The previous prime is 1302491599. The next prime is 1302491621. The reversal of 1302491616 is 6161942031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552841 + ... + 555191.

It is an arithmetic number, because the mean of its divisors is an integer number (37044000).

Almost surely, 2^1302491616 is an apocalyptic number.

1302491616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302491616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778112000).

1302491616 is an abundant number, since it is smaller than the sum of its proper divisors (2253732384).

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

1302491616 is a wasteful number, since it uses less digits than its factorization.

1302491616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1302491616 is about 36090.0487115216. The cubic root of 1302491616 is about 1092.0897026769.

The spelling of 1302491616 in words is "one billion, three hundred two million, four hundred ninety-one thousand, six hundred sixteen".