641114990 has 8 divisors (see below), whose sum is σ = 1154007000. Its totient is φ = 256445992.

The previous prime is 641114983. The next prime is 641115017. The reversal of 641114990 is 99411146.

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

It is a super-2 number, since 2×641114990² = 822056860805400200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641114990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32055740 + ... + 32055759.

It is an arithmetic number, because the mean of its divisors is an integer number (144250875).

Almost surely, 2^641114990 is an apocalyptic number.

641114990 is a deficient number, since it is larger than the sum of its proper divisors (512892010).

641114990 is a wasteful number, since it uses less digits than its factorization.

641114990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64111506.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 641114990 is about 25320.2486164729. The cubic root of 641114990 is about 862.2740384053.

The spelling of 641114990 in words is "six hundred forty-one million, one hundred fourteen thousand, nine hundred ninety".