537641994 has 8 divisors (see below), whose sum is σ = 1075284000. Its totient is φ = 179213996.

The previous prime is 537641989. The next prime is 537641999. The reversal of 537641994 is 499146735.

It is an interprime number because it is at equal distance from previous prime (537641989) and next prime (537641999).

It is a sphenic number, since it is the product of 3 distinct primes.

537641994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (537641999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44803494 + ... + 44803505.

It is an arithmetic number, because the mean of its divisors is an integer number (134410500).

Almost surely, 2^537641994 is an apocalyptic number.

537641994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

537641994 is a wasteful number, since it uses less digits than its factorization.

537641994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89607004.

The product of its digits is 816480, while the sum is 48.

The square root of 537641994 is about 23187.1083578785. The cubic root of 537641994 is about 813.1382567997.

The spelling of 537641994 in words is "five hundred thirty-seven million, six hundred forty-one thousand, nine hundred ninety-four".