1601938152 has 48 divisors (see below), whose sum is σ = 4593796740. Its totient is φ = 502568448.

The previous prime is 1601938081. The next prime is 1601938157. The reversal of 1601938152 is 2518391061.

1601938152 is a `hidden beast` number, since 1 + 601 + 9 + 38 + 15 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1539306756 + 62631396 = 39234^2 + 7914^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1601938157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653163 + ... + 655610.

Almost surely, 2^1601938152 is an apocalyptic number.

1601938152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1601938152 is an abundant number, since it is smaller than the sum of its proper divisors (2991858588).

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

1601938152 is a wasteful number, since it uses less digits than its factorization.

1601938152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308802 (or 1308795 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1601938152 is about 40024.2195676568. The cubic root of 1601938152 is about 1170.0791706233.

The spelling of 1601938152 in words is "one billion, six hundred one million, nine hundred thirty-eight thousand, one hundred fifty-two".