1605615242 has 32 divisors (see below), whose sum is σ = 3064003200. Its totient is φ = 625561440.

The previous prime is 1605615241. The next prime is 1605615251. The reversal of 1605615242 is 2425165061.

It is a junction number, because it is equal to n+sod(n) for n = 1605615199 and 1605615208.

It is not an unprimeable number, because it can be changed into a prime (1605615241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98843 + ... + 113934.

It is an arithmetic number, because the mean of its divisors is an integer number (95750100).

Almost surely, 2^1605615242 is an apocalyptic number.

1605615242 is a deficient number, since it is larger than the sum of its proper divisors (1458387958).

1605615242 is a wasteful number, since it uses less digits than its factorization.

1605615242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212811 (or 212797 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1605615242 is about 40070.1290489562. The cubic root of 1605615242 is about 1170.9737533567.

The spelling of 1605615242 in words is "one billion, six hundred five million, six hundred fifteen thousand, two hundred forty-two".