1641842025 has 12 divisors (see below), whose sum is σ = 2714512272. Its totient is φ = 875649040.

The previous prime is 1641842017. The next prime is 1641842063. The reversal of 1641842025 is 5202481461.

It is a happy number.

It is not a de Polignac number, because 1641842025 - 2³ = 1641842017 is a prime.

It is a super-2 number, since 2×1641842025² = 5391290470112201250, which contains 22 as substring.

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, 10945539 + ... + 10945688.

It is an arithmetic number, because the mean of its divisors is an integer number (226209356).

Almost surely, 2^1641842025 is an apocalyptic number.

1641842025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1641842025 is a deficient number, since it is larger than the sum of its proper divisors (1072670247).

1641842025 is a wasteful number, since it uses less digits than its factorization.

1641842025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21891240 (or 21891235 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1641842025 is about 40519.6498627518. The cubic root of 1641842025 is about 1179.7150573596.

The spelling of 1641842025 in words is "one billion, six hundred forty-one million, eight hundred forty-two thousand, twenty-five".