1601947242 has 24 divisors (see below), whose sum is σ = 3966726816. Its totient is φ = 457699176.

The previous prime is 1601947219. The next prime is 1601947267. The reversal of 1601947242 is 2427491061.

It is a happy number.

1601947242 is a `hidden beast` number, since 1 + 601 + 9 + 4 + 7 + 2 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1601947197 and 1601947206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6356808 + ... + 6357059.

It is an arithmetic number, because the mean of its divisors is an integer number (165280284).

Almost surely, 2^1601947242 is an apocalyptic number.

1601947242 is an abundant number, since it is smaller than the sum of its proper divisors (2364779574).

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

1601947242 is a wasteful number, since it uses less digits than its factorization.

1601947242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713882 (or 12713879 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1601947242 is about 40024.3331237386. Note that the first 3 decimals coincide. The cubic root of 1601947242 is about 1170.0813837757.

The spelling of 1601947242 in words is "one billion, six hundred one million, nine hundred forty-seven thousand, two hundred forty-two".