1601509748 has 12 divisors (see below), whose sum is σ = 2808217440. Its totient is φ = 799161912.

The previous prime is 1601509729. The next prime is 1601509771. The reversal of 1601509748 is 8479051061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395978 + ... + 400001.

It is an arithmetic number, because the mean of its divisors is an integer number (234018120).

Almost surely, 2^1601509748 is an apocalyptic number.

It is an amenable number.

1601509748 is a deficient number, since it is larger than the sum of its proper divisors (1206707692).

1601509748 is a wasteful number, since it uses less digits than its factorization.

1601509748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796486 (or 796484 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1601509748 is about 40018.8674002651. The cubic root of 1601509748 is about 1169.9748571313.

The spelling of 1601509748 in words is "one billion, six hundred one million, five hundred nine thousand, seven hundred forty-eight".