1642151841 has 32 divisors (see below), whose sum is σ = 2442286080. Its totient is φ = 973003200.

The previous prime is 1642151837. The next prime is 1642151851. The reversal of 1642151841 is 1481512461.

1642151841 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1642151841 - 2² = 1642151837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1642151831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 542430 + ... + 545448.

It is an arithmetic number, because the mean of its divisors is an integer number (76321440).

Almost surely, 2^1642151841 is an apocalyptic number.

1642151841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1642151841 is a deficient number, since it is larger than the sum of its proper divisors (800134239).

1642151841 is a wasteful number, since it uses less digits than its factorization.

1642151841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397.

The product of its digits is 7680, while the sum is 33.

The square root of 1642151841 is about 40523.4727164393. The cubic root of 1642151841 is about 1179.7892568679.

The spelling of 1642151841 in words is "one billion, six hundred forty-two million, one hundred fifty-one thousand, eight hundred forty-one".