614445990 has 16 divisors (see below), whose sum is σ = 1474670448. Its totient is φ = 163852256.

The previous prime is 614445973. The next prime is 614445991. The reversal of 614445990 is 99544416.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (614445991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10240737 + ... + 10240796.

It is an arithmetic number, because the mean of its divisors is an integer number (92166903).

Almost surely, 2^614445990 is an apocalyptic number.

614445990 is an abundant number, since it is smaller than the sum of its proper divisors (860224458).

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

614445990 is a wasteful number, since it uses less digits than its factorization.

614445990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20481543.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 614445990 is about 24788.0210989099. The cubic root of 614445990 is about 850.1480664781.

The spelling of 614445990 in words is "six hundred fourteen million, four hundred forty-five thousand, nine hundred ninety".